When a girl uses a guy to get answers, favors, money, etc.
Person A: she just texted me again she likes me and wants me to help her with maths
Person B: she's obviously bigbraining you
by BURGERDONALDS September 1, 2019
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When someone has a brain too big it malfunctioning
Jaani is showing signs of Bigbrainity
by Cutie patooty April 6, 2021
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1: Someone with a brain so f-en big, it literally makes them more dumb than smart. 2: a dumb ass nerd
I have I bigbrain and you have a small ass brain like a hamster eating a horse butt.
by DankChez October 8, 2019
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