1 definition by Three-finityBits

Means that you’re really smart. If you get called big brain then you’re lucky to have been called so. So now you guys use that brain power!
Person 1: I still can’t figure this out...
Person 2: Wait a sec if I do this... annnd this!

Person 1: NO WAY!!! That was so big brain!
Person 1: Thank you so much, right, let’s go!
by Three-finityBits December 7, 2019
Get the Big brain mug.