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

A term one uses when they can't remember anything and are just overall feeling awfully stupid today. When you are trying to solve a math problem, but you completely forget what to do.

Girl #1: Uggh this math homework is giving me a headache.
Girl #2: It's not that hard, we just learned this all in class today.

Girl #1: Yeah, but right now I'm having the biggest brain fart.

by the_true_name_definer ;) December 19, 2018

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 that guy they call “Brain” rips a fart.

I was grocery shopping with Brain, and he accidentally let out a fat one in the canned beans isle. I yelled out “BRAIN FART!”

by The real Londigo June 30, 2024

Brain fart

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