Top Definition
A term to describe a girl who's intellegence meets but does not exceed the size of her waist.
Steve: Dude I am totally gonna hook up with her. She is totally hot.

Greg: What I thought you were into geeky chicks. That girl is a waist-brain.

#syn- idiot #stupid #fool #dullard ant- smart #brainiac #nerd
by Greyn April 03, 2009
6 Words related to Waist-brain
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