Term used by white-trash and red-necks to describe thier truck or car. Not used to refer to a truck or car that is on blocks or parked in the weeds near a mobile home or out house.
Sorry I didnt make that run down south with ya to get them there raccoons, but the posm went down with a bent rod.
by Santana January 27, 2005
(pronounced possum) Piece Of Shit Mother
You know that POSM is still in her club clothes from last night checking her kid in two hours late!
by XtinaNOLA December 03, 2015