where you can't think of something, can't remember something
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!
by Neelyk June 20, 2010
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A moment when you just forget something even if you ran through it a moment ago.
person1: What's that?
(points to chair)
person2: Uh, Uh...
person1: BRAIN FART!
by Adeladaine March 20, 2009
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It was a real brain fart, when he started talking about how his pants fell down while wearing them low.
by T.V. John March 27, 2013
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When you both remember and cannot remember if you have done something. The state of being unsure if it is a false memory or a factual experience.
Schroedinger to Heisenberg; darn your uncertainty principle, I am having a quantum brain fart trying to remember if I did (or did not) put the cat in the box.
by Teraknor November 05, 2015
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The speech that results from a brain fart, which simultaneously promotes inspiration, fascination, and complete confusion. Few people leave a conversation with someone who suffers from ABF without saying, "Wow".

Most people go blank when experiencing a "Brain Fart" but some possess the unbelievable ability to create sentences during this time. These sentences are known as "Audible Brain Farts."
Me: Hey Coach

Coach: Oh hey Nate, you ready to run this Saturday?

Me: Yeah, I think I'm-

Coach: why don't you go home and get a warm one on your belly.

Me: WOW, I think coach suffers from ABF(Audible Brain Fart Disorder).
by 556677NK March 08, 2010
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when a computer freezes or starts being dumb. or any one who has a lapse in judgment.
Damn. My computer had another brain fart.

I can't believe Jacob did that. He must've had a major brain fart.
by Whoohoo December 20, 2007
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is a rule which states that any conceivable thought which ordinarily could be summoned has been lost and has become irretrievable. A complete blank.
He just completely went blank in the middle of the speech. He couldn't say a thing. Musta had a quantum brain fart.
by OMGR8US October 08, 2012
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