1) A phrase one usually says when he is so pissed off about something. After he dies and loses all his enchanted diamond armor and shit to the enderdragon, one might say, "OH SHIT! I FUCKED MYSELF IN THE ASS!"

2) The action of taking either a 6.9 inch vibrator and shoving it up your ass until you moan so loudly, "I FUCKED MYSELF IN THE ASS"

3) A male masturbation technique where you wrap your schlong all the way around your body and into your own asshole. One usually fucks their own ass when they are still a horny 12 year old and are still a virgin with no friends.
While Eric was watching Shrek hentai, he decided to shove his small ass peen into his own big ass asshole. He moaned so loudly that the frogs turned gay and started buttfucking each other. "UUUUUHHHHIIIIOOO! I FUCKED MY OWN ASS! UUUUUHHHHIIIIOOO!"
by Long w e e n boi November 13, 2019
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