2 definitions by BillyP

a person who thinks he/she is too tuff or cool. Billy badass
I was at the club and the bouncer was acting like a billy
by BillyP March 24, 2006
Get the a billy mug.
When someone smiles with a big a mole on his face. The mole must be of adequate size to distract you from any of there other features.
by BillyP February 20, 2015
Get the Smole mug.