Someone with massive intelligence. Usually the coolest person in the room
"That girl BB is hella smart man. BB must stand for Big Brain."
by Memegod5000 June 26, 2021
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Me
I am verry Big Brain.
by da1240me September 28, 2020
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Anthony: I have a big brain!!
Juan: no. You have a small brain.
by The_crazy_jazzy September 30, 2019
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