noun. The very romantic act of fondling one's own tushie.
Related terms: Buttgate.
Real citation: "Sully's been taking a lot of heat for this auto-assplay after Maher's show this weekend. But you know what they say: If you can't be with the one you love, love the one you're with. "
("Sullivan Approaches from the Rear," Nov. 9, 2004, Wonkette, http://www.wonkette.com/archives/sullivan-approaches-from-the-rear-025278.php)
Made-up citation: "Auto-assplay, like smoking, is prohibited in the library."