An entirely new stage of confusion. It's like having a "brain fart" except for a breif moment you can not remember anything. Your brain feels like it has shut down becuase one thing is so difficult to understand. It leaves you in a whole new state of confusion and befuddlement.
by IbagM21 January 3, 2015
momentary mental lapse as when you see someone familiar but forgot their name the instant you were going to say hello
Lover 1 Susan: Oh John that was sooo good!
Lover 2 John: Ohhh yeah, uh, rats I just had a brain fart. Damn what's your name again?
Lover 2 John: Ohhh yeah, uh, rats I just had a brain fart. Damn what's your name again?
by no1sandman July 31, 2010
Person 1: Hey baby
Person 2: What!?
Person 1: Oh sorry I thought you were my girlfriend
Person 2: what im a guy!
Person 1: uh errr (realizes it is unmistakably a guy)
Person 3: Don't get upset, it appears he is having a "brain fart"
Person 1: A brain fart?
Person 3: yes a brain fart, see they happen when ass gnomes dwell in your mind cave, causing disruption to your brain juice
Person 2: What!?
Person 1: Oh sorry I thought you were my girlfriend
Person 2: what im a guy!
Person 1: uh errr (realizes it is unmistakably a guy)
Person 3: Don't get upset, it appears he is having a "brain fart"
Person 1: A brain fart?
Person 3: yes a brain fart, see they happen when ass gnomes dwell in your mind cave, causing disruption to your brain juice
by Thecaveofgreatness August 21, 2010
When someone does not perform an action that obviously should have been done, especially when you are under pressure and must think quickly.
Phillies fan: "Dude, Rod Barajas had a brain fart last night! He should have blocked the plate instead of standing up!"
Mets Fan: "That's not a surprise."
Mets Fan: "That's not a surprise."
by DW5 May 26, 2007
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
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 Adeladaine March 20, 2009