this is a description of when your ass getting really swetty. its a combination of sweat and ass. used as a verb, it is when you stick your sweaty ass on someone, usually in the face.
"Demo was pissing my off and wouldn't shut the fuck up up so i swassed him right in the face1'
by stretch May 02, 2003
Sweaty Ass. This is an uncomfortable condition which is caused by exersice. This is often embarassing if you are wearing shorts since the condition is visible. This term was orginated in 1998 in the Marquette Wrestling room.
That girl working out on the stairmaster has the worst case of swass.
by Diamond D September 06, 2005