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A person who is a intellectual who has an IQ of at least 5000.A way to become a big brain is to watch all the Rick in Morty episodes.Some very popular big brains include Markiplier and PewDiePie.
I Big Brain
by Big brain5000 October 20, 2019
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22
BIG BRAIN BIG BRAIN BIG BRAIN BIG BRAIN BIG BRAIN BIG BRAIN BIG BRAIN BIG BRAIN BIG BRAIN BIG BRAIN BIG BRAIN BIG BRAIN BIG BRAIN BIG BRAIN BIG BRAIN BIG BRAIN
IM BIG BRAIN
by NINJAISKINDACUTE October 16, 2019
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23
A big brain is a person who is stupid and yet smart with their stupidity.
Look! Jeff just pulled a big brain by jumping out of a three-story window to beat his sister down the stairs.
by Big Brain Joe May 21, 2021
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24
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
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25
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
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26
Big brain is a common saying used by many middle/high school ages students who want to express that they are

a) actually dumb and are covering up their mistake
b)says something smart

c) wants to fit it
these comments are made after any of (a,b, or c).
person 1- i just saw a dog and thought it was a cat
person 2- that’s really big brain of you
by yep it’s me 1107 March 06, 2020
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