big brain

the opposite of small brain

me in a mirror: dude you're so big brain
also me: nah man im small brain

by i m s o p u r e November 14, 2020

big brain

a person who wont shut up and listen

*music plays* sInGs: Big brain is a person, who wont shut up and listen

by llama with a h June 29, 2021

Big Brain Time

Sucking the male genital in order to give one pleasure.

Giving head for male pleasure.

Julia,it's big brain time.

by Jjjbblll June 9, 2021

Big brain time

Plankton the evil genius giant brain

Friend: Wow, Plankton is the best character!
Friend 2: I know right? He’s the definition of Big brain Time

by CherrishNoodles April 21, 2020

Big Brain

Code word for Big Dick

Anthony: I have a big brain!!
Juan: no. You have a small brain.

by The_crazy_jazzy September 29, 2019

Big brain

Extremely large brain. Usually named Lily.

Basically a person with a very large brain that has hella smart stuff.

Random dude: what’s 42+27?
Lily: 69 🧐
Random dude: damn you hella big brain

by Edjn October 24, 2019

Big brain

A big brain is a brain that only big brains can handle.

Only a few people have big brains, therefore they're genius.

Person1: 2+2=7
Person2:BIG BRAIN

by shoulder pain sufferer October 26, 2019