Top definition
While eating a piece of pizza you are given a blowjob. Prior to the conclusion of the sex act you must pull it out of her mouth and nut on the crust. The crust must then be consumed by the giver of the blowjob. A special condition of the Dirty Papa is that at some point during the act, a grease-covered finger of the person recieving the head must be rubbed across the young lady's forehead.
"Hey man, I hear you and your girl do some kinky shit."
"Yea buddy, last night I gave her a Dirty Papa, she always eats the crust."
by Dan Funk July 26, 2009
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