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1.
A promiscuous woman who throws herself at men.
Stacey was all over everyone last night, what a pie slinger.
by Fat A January 19, 2009
 
2.
another term used for a pizza delivery guy.
Guy #1: Hey have you seen Fred Roberts lately?

Guy #2: Yeah, he's a pie slinger for pizza hut.
by Sebastian Bonaparte May 12, 2008