Short for prostitute, like tranny is short for trasvestite.
This girl in my building- I think she's a prossy.
by pragmatica March 19, 2004
1 more definition
Short for "Processor" which is essentially the brain of any computing device. Two major processor developers are AMD and Intel.
My stupid ass motherboard died today, so I got to get a new motherboard, which will also require me to purchase another prossy.
by IsraelHands09 November 09, 2010