Terrible facial hair, normally grown on the chin. Unlike goatees and beards, chin-fuzz often looks ungroomed and out of place. It can also resemble pubic hair.
by Steve-O, the King of the World April 24, 2006

When you squeeze together either sides of your chin it and it does not crease.
If it does crease, it is a bum chin.
If it does crease, it is a bum chin.
by Gemmer September 6, 2006

by whytsyed February 10, 2007

by Rbomb04 July 26, 2014

by EmmaB December 31, 2007

when you perform anal sex on a girl, then once finished you go down on her and she shits on your chin.
by festunga May 9, 2007
