"All About The Paper". Used mainly by college students when asked what they're doing on a certain day, or why they were unavailable for social activities.
Nadav: "Hey, Keren, how come u couldn't come to my party on Saturday? too busy?"
Keren: "Yeah, man, Saturday was AATP".
by Keren Greenblatt February 16, 2008
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"All About The Physical."

- a person who only seeks the physical aspect of a relationship and doesn't care at all about any emotional connection.
Man, did you see Dave making out with that chick last night? He's AATP.
by Dave&Doug May 5, 2009
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