{"id":12304,"date":"2025-12-19T01:00:00","date_gmt":"2025-12-19T01:00:00","guid":{"rendered":"https:\/\/engoo.com\/blog\/?p=12304"},"modified":"2025-12-10T18:58:56","modified_gmt":"2025-12-10T18:58:56","slug":"brain-idioms","status":"publish","type":"post","link":"https:\/\/engoo.com\/blog\/language-tips\/brain-idioms\/","title":{"rendered":"13 English \"Brain\" Idioms and Expressions"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_80 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/engoo.com\/blog\/language-tips\/brain-idioms\/#English_Brain_Idioms\" >English Brain Idioms<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/engoo.com\/blog\/language-tips\/brain-idioms\/#No-brainer\" >No-brainer<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/engoo.com\/blog\/language-tips\/brain-idioms\/#To_have_something_on_the_brain\" >To have something on the brain<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/engoo.com\/blog\/language-tips\/brain-idioms\/#The_brains\" >The brains<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/engoo.com\/blog\/language-tips\/brain-idioms\/#Brainiac\" >Brainiac<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/engoo.com\/blog\/language-tips\/brain-idioms\/#Brain_fart\" >Brain fart<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/engoo.com\/blog\/language-tips\/brain-idioms\/#Brain_trust\" >Brain trust<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/engoo.com\/blog\/language-tips\/brain-idioms\/#Brainstorm\" >Brainstorm<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/engoo.com\/blog\/language-tips\/brain-idioms\/#Brainchild\" >Brainchild<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/engoo.com\/blog\/language-tips\/brain-idioms\/#Brain_freeze\" >Brain freeze<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/engoo.com\/blog\/language-tips\/brain-idioms\/#Brain_drain\" >Brain drain<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/engoo.com\/blog\/language-tips\/brain-idioms\/#Brainwash\" >Brainwash<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/engoo.com\/blog\/language-tips\/brain-idioms\/#Pick_someones_brain\" >Pick someone&#8217;s brain<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/engoo.com\/blog\/language-tips\/brain-idioms\/#Bird_brain\" >Bird brain<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/engoo.com\/blog\/language-tips\/brain-idioms\/#Wrap-up\" >Wrap-up<\/a><\/li><\/ul><\/nav><\/div>\n\n<p>The brain is the part of our bodies that lets us think and process information.<\/p>\n\n\n\n<p>But the word also appears in common English words and expressions that native speakers often use. Let's take a look at some you can start using in your conversations today.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"English_Brain_Idioms\"><\/span><strong>English Brain Idioms<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"No-brainer\"><\/span><strong>No-brainer<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/assets.blog.engoo.com\/wp-content\/uploads\/sites\/9\/2025\/10\/29050713\/brain_idioms_1-1024x683.jpg\" alt=\"A man with headphones and a glass of champagne sitting in the first class section of an airplane\" class=\"wp-image-12311\" srcset=\"https:\/\/assets.blog.engoo.com\/wp-content\/uploads\/sites\/9\/2025\/10\/29050713\/brain_idioms_1-1024x683.jpg 1024w, https:\/\/assets.blog.engoo.com\/wp-content\/uploads\/sites\/9\/2025\/10\/29050713\/brain_idioms_1-300x200.jpg 300w, https:\/\/assets.blog.engoo.com\/wp-content\/uploads\/sites\/9\/2025\/10\/29050713\/brain_idioms_1-768x512.jpg 768w, https:\/\/assets.blog.engoo.com\/wp-content\/uploads\/sites\/9\/2025\/10\/29050713\/brain_idioms_1-420x280.jpg 420w, https:\/\/assets.blog.engoo.com\/wp-content\/uploads\/sites\/9\/2025\/10\/29050713\/brain_idioms_1-840x560.jpg 840w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>Meaning: something that is easy to understand, or a choice that is easy to make<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>The choice to upgrade to a first-class seat for free was a <strong>no-brainer<\/strong>.<\/p>\n<\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"To_have_something_on_the_brain\"><\/span><strong>To have something on the brain<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Meaning: to think about something constantly<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>My son <strong>has<\/strong> Pok\u00e9mon <strong>on the brain<\/strong>. It's all he ever talks about.<\/p>\n<\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"The_brains\"><\/span><strong>The brains<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Meaning: intelligence<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>I don't have <strong>the brains<\/strong> to figure out this math problem.<\/p>\n<\/blockquote>\n\n\n\n<p>\"The brains\" can also refer to a person who is the leader of a group or the smartest person in a group.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>Mr. Carter seems to be <strong>the brains<\/strong> of the organization.<\/p>\n<\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Brainiac\"><\/span><strong>Brainiac<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Meaning: a very intelligent person<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>One of my classmates is a real <strong>brainiac<\/strong>. He gets a perfect score on every test.<\/p>\n<\/blockquote>\n\n\n\n<p><em>Related article: <\/em><a href=\"https:\/\/engoo.com\/blog\/travel-fun\/english-expressions-that-come-from-comics\/\" target=\"_blank\" rel=\"noreferrer noopener\"><em>English Expressions That Come from Comics<\/em><\/a><\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Brain_fart\"><\/span><strong>Brain fart<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Meaning: a moment in which someone cannot think clearly<\/p>\n\n\n\n<p>This expression is quite casual, so only use it in informal situations.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>I had a<strong> brain fart<\/strong> and forgot the name of the street where I live.<\/p>\n<\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Brain_trust\"><\/span><strong>Brain trust<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Meaning: a group of people in charge of planning or making important suggestions<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>The leaders met with the <strong>brain trust<\/strong> before finalizing any policy decisions.<\/p>\n<\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Brainstorm\"><\/span><strong>Brainstorm<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Meaning: to quickly think of ideas in order to solve a problem or accomplish a task<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>There are no bad ideas when you're <strong>brainstorming<\/strong>. The more ideas, the better!<\/p>\n<\/blockquote>\n\n\n<div class=\"unified-block engoo-box\"><div class=\"engoo-box-title\">Want to practice using these words in a real chat?<\/div><div class=\"engoo-box-content block-align-none\">Book a 25-minute English lesson on <strong><a href=\"https:\/\/engoo.com\/\" target=\"_blank\" rel=\"noreferrer noopener\">Engoo<\/a><\/strong>. <br>Engoo tutors are based in countries around the world and are ready to help you 24 hours a day!<\/div><\/div>\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Brainchild\"><\/span><strong>Brainchild<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Meaning: the result of someone's idea or creativity<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>The project was the <strong>brainchild<\/strong> of several local artists.<\/p>\n<\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Brain_freeze\"><\/span><strong>Brain freeze<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/assets.blog.engoo.com\/wp-content\/uploads\/sites\/9\/2025\/10\/29050009\/brain_idioms_2-1024x683.jpg\" alt=\"A young boy with a brain freeze from eating ice cream\" class=\"wp-image-12309\" srcset=\"https:\/\/assets.blog.engoo.com\/wp-content\/uploads\/sites\/9\/2025\/10\/29050009\/brain_idioms_2-1024x683.jpg 1024w, https:\/\/assets.blog.engoo.com\/wp-content\/uploads\/sites\/9\/2025\/10\/29050009\/brain_idioms_2-300x200.jpg 300w, https:\/\/assets.blog.engoo.com\/wp-content\/uploads\/sites\/9\/2025\/10\/29050009\/brain_idioms_2-768x512.jpg 768w, https:\/\/assets.blog.engoo.com\/wp-content\/uploads\/sites\/9\/2025\/10\/29050009\/brain_idioms_2-420x280.jpg 420w, https:\/\/assets.blog.engoo.com\/wp-content\/uploads\/sites\/9\/2025\/10\/29050009\/brain_idioms_2-840x560.jpg 840w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>Meaning: a sudden, intense cold sensation in the head<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>Don't eat that ice cream too fast or you'll get a <strong>brain freeze<\/strong>!<\/p>\n<\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Brain_drain\"><\/span><strong>Brain drain<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Meaning: a situation in which large numbers of intelligent people leave a place<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>The government's lack of funding for research led to a <strong>brain drain<\/strong>, as many of the country's scientists left for other nations.<\/p>\n<\/blockquote>\n\n\n\n<p><em>Related Daily News lesson: <\/em><a href=\"https:\/\/engoo.com\/app\/daily-news\/article\/poorer-countries-feel-effects-of-brain-drain\/X7uzukS5Ee-rocvoO9LxqA\" target=\"_blank\" rel=\"noreferrer noopener\"><em>Poorer Countries Feel Effects of 'Brain Drain'<\/em><\/a><\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Brainwash\"><\/span><strong>Brainwash<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Meaning: to replace someone's old ways of thinking with new ways that are designed to control them<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>Some people are worried that social media is <strong>brainwashing<\/strong> today's youth.<\/p>\n<\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Pick_someones_brain\"><\/span><strong>Pick someone&#8217;s brain<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/assets.blog.engoo.com\/wp-content\/uploads\/sites\/9\/2025\/10\/29050416\/brain_idioms_3-1024x683.jpg\" alt=\"Two people chatting at a table with drinks\" class=\"wp-image-12310\" srcset=\"https:\/\/assets.blog.engoo.com\/wp-content\/uploads\/sites\/9\/2025\/10\/29050416\/brain_idioms_3-1024x683.jpg 1024w, https:\/\/assets.blog.engoo.com\/wp-content\/uploads\/sites\/9\/2025\/10\/29050416\/brain_idioms_3-300x200.jpg 300w, https:\/\/assets.blog.engoo.com\/wp-content\/uploads\/sites\/9\/2025\/10\/29050416\/brain_idioms_3-768x512.jpg 768w, https:\/\/assets.blog.engoo.com\/wp-content\/uploads\/sites\/9\/2025\/10\/29050416\/brain_idioms_3-420x280.jpg 420w, https:\/\/assets.blog.engoo.com\/wp-content\/uploads\/sites\/9\/2025\/10\/29050416\/brain_idioms_3-840x560.jpg 840w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>Meaning: to speak with someone in order to gain information<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>Do you have time to meet today? I want to <strong>pick your brain<\/strong> about something.<\/p>\n<\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Bird_brain\"><\/span><strong>Bird brain<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Meaning: an unintelligent person<\/p>\n\n\n\n<p>This very informal term is an insult that refers to the small size of the brains of birds.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>Don't walk into the street without looking both ways, <strong>bird brain<\/strong>!<\/p>\n<\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Wrap-up\"><\/span><strong>Wrap-up<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>These useful \"brain\" idioms are about much more than just the organ in our heads! However, all of them are related to thoughts and intelligence \u2014 or sometimes the lack of intelligence!<\/p>\n\n\n\n<p>Don't forget to book a lesson on Engoo to practice using these words yourself. And to learn more useful idioms based on body parts, check out <a href=\"https:\/\/engoo.com\/blog\/language-tips\/body-part-idioms\/\" target=\"_blank\" rel=\"noreferrer noopener\">this article<\/a> next!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The brain is the part of our bodies that lets us think and process information. But the word also appears in common English words and expressions that native speakers often use. Let's take a look...<\/p>\n","protected":false},"author":432,"featured_media":12312,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"unified_meta_tagline_field":"","footnotes":""},"categories":[6],"tags":[29],"class_list":["post-12304","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-language-tips","tag-idioms"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.7 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>13 English &quot;Brain&quot; Idioms and Expressions | Engoo Blog<\/title>\n<meta name=\"description\" content=\"From &quot;bird brains&quot; to &quot;brain freezes,&quot; brain idioms let you talk about a variety of different scenarios in natural English.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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