When you do something incredibly stupid by mistake. An obvious mistake that should for a task that's usually very simple.
Fernando: I was making cheese and crackers with salami but I put peanut butter instead of salami. Brain fart!
Josh: Yeah. Brain fart! And you're usually very smart.
Josh: Yeah. Brain fart! And you're usually very smart.
by CognitiveFuel March 14, 2023
Get the Brain Fartmug. 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
Get the Brain Fartedmug. by Lalina October 12, 2009
Get the Brain Fartmug. 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
Get the Brain fartmug. by Henry Harmison August 4, 2008
Get the Brain Fartmug. by 7modybu50 March 12, 2020
Get the Brain Fartmug. by scrale May 2, 2014
Get the Brain Fartmug.