Morning Brain

When you first wake up and you are stupider than normal.

Dude, I can’t do that right now I got morning brain.

by Yo Mama Like Me January 4, 2021

brain afterbirth

A loose measurement of how stupid, ridiculous, or retarded something is.

That kid has too much brain afterbirth.

The amount of brain afterbirth in that video was astounding.

by Zebora September 21, 2017

Grug Brain

Someone who has a very primitive thought process

Homo Sapien 1: "OOOOO fire look so cool."
Homo sapien 2: "You're such a Grug Brain."

by crazyfortniteman October 31, 2021

Pickleball Brains

Someone who thinks and/or acts small and/or stupid in everyday life.

Look at where you are going Pickleball Brains, you almost hit that pedestrian

by jondich February 26, 2021

brain fart

momentary mental lapse as when you see someone familiar but forgot their name the instant you were going to say hello

Lover 1 Susan: Oh John that was sooo good!

Lover 2 John: Ohhh yeah, uh, rats I just had a brain fart. Damn what's your name again?

by no1sandman August 1, 2010

Penis Brain

A person who thinks with there penis.

A guy who just wants to have sex.

A man who is horny all of the time.

A guy that thinks only with his penis and of his penis.

A man who believes everything in life can be in some way relative to the human penis.

A man who uses his penis to hide the fact that he has no skills in getting women.

"My ex boyfriend was such a penis brain, all he cared about was sex"

"Why do you always have to be such a penis brain? All you think about is your penis!"

by Suckmycockerspanielbitch69 October 7, 2008

Gamers brain

When you play games way too much and can't even remember what you did 5 seconds ago.

Me: What was I defining again?

Mike: You forgot, no shit. You've been sitting on your sorry ass playing games all day long. Man, you must have gotten the gamers brain."

by HidingInTheDark July 31, 2010