look up any word, like bukkake:
A fat man who still lives in his mom's basement well into adulthood. Basically another word for Momma's Boy.
Guy 1: Guys I'm 30 and I live in my mom's basement, oh and I weigh 300 pounds!
Guy 2: Ha ha, you're a Carnbarn!
Guy 1's Mom: Carnbarn come here! I baked you some cookies!
by ThayTah March 12, 2009

Words related to Carnbarn

big baby momma's boy virgin carnevil fat loser no life