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

To say or do a stupid

"When I first saw that text I had forgotten what we were talking about and I was like woah what the hell"
"lol, dem brain farts"

by Lemoncake August 15, 2015

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

mega brain fart

When you have the motivation to do something useful after work, only for you to sit down and play video games and whine about how little time you have to do something useful every day.

Negrito: I know I said I’d do it after work, but I’m tired right now and I think I deserve to nap.
George: What the mega brain fart was that? Get up and do the dishes, laundry, cooking, plumbing, lighting, cleaning, kitchen, bathroom, and universe right now young man.
Negrito: *depressed*

by ☆★Midas★☆ February 21, 2024

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