A girl who fucks a lot of squatters. Often a squatter herself, though not necessarily.
That girl fucked all the guys in the squat! What a squat mattress!
by Tigrrlily November 20, 2006
whore, slut, TEH DIRTEH. not even a bum that shit his pants would hit it.
dood she is squatmattress
by starrie February 06, 2003
A girl who will fuck for a place to sleep that night.
"She's a dirty squat mattress."
by Rasputin August 24, 2003