Quantum Brain Fart

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

Fart Brain

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

brain fart

something that you know how to do, but temperarly forgot.
or you just got a brain fart because you wernt thinking clearly.

dont you hate brain farts?

by crystaldreamer12 September 16, 2021

Brain fart

When theres too much misunderstanding in the mind about something.

Bro i had a brain fart during the whole lecture.

by Wakandaman247 June 24, 2025

Brain fart

When you forget something really important.

Teacher: yes, gertrude?
Student: never mind, brain fart😟

by _.duhitsme._ August 10, 2016

brain fart

when you forget every thing you learn to do a test

flip i had a brain fart

by laughmaker5000 September 28, 2019

Brain-farting

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