brain fart

[ breyn-fahrt ]
/ ˈbreɪn ˌfɑrt /

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.

QUIZZES

THIS PSAT VOCABULARY QUIZ IS PERFECT PRACTICE FOR THE REAL TEST

In our third teacher-created PSAT practice test there are new and unique vocabulary terms you may have never heard of! Can you guess what they mean?
Question 1 of 10
seclusion

Origin of brain fart

First recorded in 1985–90
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

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