1 definition by Katiegirl005

Mim

A frat guy with a small, lacking penis.

Girl 1: "Oh no girl, don't shack with him."
Girl 2: "Why not?"
Girl 1: "He is such a Mim. LACKING!"
Girl 2: "Oh my gosh. Thank you for warning me."

by Katiegirl005 February 23, 2010