Top definition
An ego brain is someone that thinks they are the best thing in the world. They also belive they can do anything, at anytime, and anywhere. Also a word used in a system of a down song.
wow isnt jill a huge ego brain? yeah i heard she was.
by TheNamesClay April 23, 2009
Get the mug
Get a Ego brain mug for your grandma Julia.
buy the domain for your recipe blog