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 8, 2012
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1. Someone who's head is devoid of nominative brain tissue. Similar to the more common air head the cranium of the subject contains nothing but gas. However in this instance, the gas inside the cranium consists mainly of stinky gut methane.

2. Someone who consistently brain farts.
"I admit that I slept with your best friend, honey but honestly, it didn't mean anything."

"Why don't you just fart off, fart brain?!"
by deadestfish May 3, 2009
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Brain-farting is when your brain farts in reaction to something hilarious.

Brain-farted is when your brain lagged
Your joke was so Brain-farting

I was daydreaming at my maths class until my teacher surprised me with a question and I legit Brain-farted
by Fucking-Intellect August 5, 2019
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A stinky fart brain is someone named vanessa
stinky fart brain wouldn’t pick where we were eating she just kept saying idk
by Mfjizzyj August 2, 2022
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Brain fart- also known as “fartus brainus” is very common around students, who study math, physics or chemestry. It’s caused when you’re brain does not know what to do aka it’s about to explode. Treatment: give up or go to sleep
"I had a total brain fart while I was doing the test"
by GeDollar November 9, 2017
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Whenever your brain just stops to function for a hot minute

John: hey max how are you?
Max: Hey max I'm good, how are you?
John: did you just great yourself?
Max: I'm sorry my brain farted I couldn't think straight
I was speaking to myself when I realized I had a total brain fart
by Max & John Explain April 19, 2021
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