A sudden thought, seemingly out of nowhere, that has nothing to do with the topic you are discussing.
We were discussing the party when all of the sudden my husband had a brain fart and asked me to remind him to change the air filter on his car.
by Sleeping Aurora July 21, 2014
by 7modybu50 March 12, 2020
when you either blurt out something extremely wrong or embarassing infront of people or when you completely forget how to do something or say something
1. forgeting your name
2. I love you!! to someone infront of a bunch of people and they look at you really weird then you say or think oops brain fart
2. I love you!! to someone infront of a bunch of people and they look at you really weird then you say or think oops brain fart
by crazymusicdudette January 2, 2009
by scrale May 3, 2014
by Adeladaine March 20, 2009
Teacher: So you see, we now have only three weeks before the biology exams.
Student: That means I will only have three more driving lessons before my driving test.
Teacher: Uhh.
Student: Sorry sir, just a bain-fart.
Student: That means I will only have three more driving lessons before my driving test.
Teacher: Uhh.
Student: Sorry sir, just a bain-fart.
by John Boon April 24, 2005
me: do you remember why you swirved when we were in the truck?
liza: no i am having a brain fart!
me: huh?
liza: i cant think/remember!
me: ohh
liza: it was so i didnt hit that turtle!
liza: no i am having a brain fart!
me: huh?
liza: i cant think/remember!
me: ohh
liza: it was so i didnt hit that turtle!
by Neelyk June 21, 2010