The act of having sex with someone in the dressing room of a store.
Dude, remember that girl we saw working at the department store? I gave her a Mcfuckin after she got off work.
by Quailman217 December 15, 2007
1 more definition
A fast, cheap piece of ass
Her dad said we had to be home by midnight so we drove through the park for a quick McFuckin
by The Doomsday Machine August 25, 2006