Big brain

Big brain is a term for the opposite of a genius.

The boy was a big brain at maths.

by cdmkv March 17, 2021

big-brained elephant

someone whose real identity is an elephant and has big brain.

Coco Shabnam Maka is an big-brained elephant
Coco:ERURURURUEUHRUEHRUERHEURH

by thecharacterwannie July 14, 2022

Big-brain

Big-brain, (Which can also be spelled without a hyphen,) means smart, intelligent, and is usually used when someone says something witty in an argument.

Maddie is really big-brain for saying that!
Or
Maddie is really bigbrain for saying that!

by ~Chrysanthemum~ December 2, 2020

Big brain

Used to describe someone who actually does something smart.

“Wow ur so big brain”

by Luciana1234 December 19, 2021

big brains

Usually retarded people that thing their smart but their not. They usually have small brains and just say they have big brains to make themselves feel better.

I'm big brains and i have a 69 average.

by gamergurlbathwater420 November 18, 2019

Big Brain

Another definition of smart.

This is a big brain move.

by Mollgey April 3, 2021

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