The girl you go slumming with when your slam piece falls through or the girl you go to when you are in a slump and just need to get laid. The opposite of a slam piece
Shit, my slam piece is out of town for the weekend. I better call my slum piece.

I've been going through a slump lately. I need to lower my standards and find a slum piece.
by drivethrurelis October 3, 2011
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