Brain Fart 

When something you were going to say but the thought escaped your memory and doesn't return.

I have an idea but now I don't remember what it was, it was just on the tip of my tongue--ugg brain fart!

Brain Fart by SomethingAmiss February 3, 2015

Gamer Brain 

What happens when one spends the majority of their time playing video games and posting on gaming forums. This usually results in oversimplifying every argument one hears that is against their preconcieved notions, and resorting to very emotional black and white style rebuttals.

Person A: I don't think the new Resident Evil games are as good as the classics, but they're definitely fun.
Person B: YOU JUST LIKE ARCHAIC GAME DESIGN, ALL YOU CARE ABOUT IS NOSTALGIA.

Person A: Dude, you have gamer brain.

Gamer Brain by ILikeChunLi January 25, 2011

Brain Shit 

noun. the inability to recall the simplest of details or solve the easiest of problems. a brain shit is much more serious than a Brain Fart.

guy #2: bro, you spelled cat wrong.

guy #1: wow. i just had a complete brain shit.

Brain Shit by Brent Handles November 24, 2009

brain crush 

wanting someone purely for their mind - has nothing to do with sexual attraction.

"i have such a brain crush on this kid in my philoshophy class. sure hes 5'3" and clearly never combs his hair, but he is so witty and articulate."

brain crush by woundedgazelle December 13, 2005

Brainer 

When you think about a decision and make the right choice. Like a no-brainer but better.

The decision was a brainer

Brainer by Sourcefed fan15 April 24, 2013

poo poo brain 

its like the n-word, but only effect on Indian.

congratulations :)

P: Did you know that Indians have poo poo in their brain?
B: That's a blatant racist lie
P: Yeah, but still not defamation!

or

W: what's up my poo poo brain
I: फक यू

poo poo brain by abcde19 April 1, 2019

Brain Bleach

A fictional 'bleach' is used to erase unwanted memories, usually of something traumatizing that was seen or heard.

Similar to 'Eye Bleach', but instead it clears memories instead of just vision.

Guy 1: Oh my god, I just saw a land whale in pink stretch pants!

Guy 2: Here, take my gallon of brain bleach, you're gonna need it!

Brain Bleach by Inkspills July 7, 2009