brain fart

[ breyn-fahrt ]

nounSlang:Usually Vulgar.
  1. a brief mental lapse, especially an instance of forgetfulness or confusion: I had a brief brain fart and introduced him by the wrong name.

Origin of brain fart

1
First recorded in 1985–90

Words Nearby brain fart

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

British Dictionary definitions for brainfart

brainfart

/ (ˈbreɪnˌfɑːt) /


noun
  1. 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