PAP also known as "Public Ass Play" is a phenomenon where women think it's funny to surprise their boyfriend with a finger in the ass during a walk to the coffee shop, at the grocery store, or any other public domain.
Girl: "What you don't like that?"
Guy: "I don't do PAP"
-an acronym that stands for "pussy at prom?" It is a subtle way of asking the question that everyone wants to know the answer to, a.k.a did you get laid on prom night? It is commonly used on social networking sites such as facebook, myspace, and xanga. Can alternately stand for "penis at prom?" to accommodate a female recipient.
John-"Pap?"
Tay-"Of course! Who do you think I am?"
or
Stacy-"Hey girl hey! Pap?"
Tracy-"I can't remember..."