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.
something u or someone did caught your attention and u thought it was very smart.
YO that microwave cookie was such a BIG BRAIN Idea
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
Noun used to emphasize intelligence.
Jules: You know what they call a Quarter Pounder with cheese in France?
Brett : No.
Jules : A Royale with cheese! You know why they call it that?
Brett : Because of the metric system?
Jules : Check out the big brain on Brett! You're a smart motherfucker. That's right. The metric system.
Noun used to emphasize intelligence.
Jules: You know what they call a Quarter Pounder with cheese in France?
Brett : No.
Jules : A Royale with cheese! You know why they call it that?
Brett : Because of the metric system?
Jules : Check out the big brain on Brett! You're a smart motherfucker. That's right. The metric system.
Big brain is a term for the opposite of a genius.
The boy was a big brain at maths.
Someone with massive intelligence. Usually the coolest person in the room
"That girl BB is hella smart man. BB must stand for Big Brain."