fassyclat 

a derogatory term for somebody meaning "an irritating fanny sore"

"matt, your such a fassyclat sometimes."

fassyclat by tashrz October 11, 2007

fassociate

A fuck buddy that's not actually a friend.

Mark: I've never met your friend, James.
Rachel: And you never will. He's just a fassociate. We've been sleeping together for months and he's never even met my roommate.

fassociate by L. Timmy December 1, 2006