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brain fart

[ breyn-fahrt ]
/ ˈbreɪn ˌfɑrt /
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noun Slang:Usually Vulgar.
a brief mental lapse, especially an instance of forgetfulness or confusion: I had a brief brain fart and introduced him by the wrong name.
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Origin of brain fart

First recorded in 1985–90
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use brain fart in a sentence

British Dictionary definitions for brain fart

brainfart
/ (ˈbreɪnˌfɑːt) /

noun
informal an idea that a person voices without much consideration, such as during a brainstorming session
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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