when a man inserts his penis in to his own ass.
Person 1: "i cummed in my own ass last night"
Person 2: "how'd you manage that?"
Person 1: " i learned how to self fuck"
by crackpottwhore March 22, 2010
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If you search for this then are basically self-fucked
She told me to go to her house to play with her pussy. But instead she plays with her pussycat. Self-Fucked myself didn't I?
(Based on a true story, Seriously.)
by Dr. Syrus June 17, 2019
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To self-fuck:

When one takes a definitive action that in turn, becomes detrimental or overall unfavorable for them. Basically, to do something stupid that only affects you.

Also (in certain cases), see douchebaggery or Back Door Braggart .
1.) "Dude, did you hear that John broke up with Ashley?" "Yeah man, and I saw his new girlfriend... that was a huge self-fuck on his part..."

2.) "AGH, I stayed up until 4am doing this paper for English, and I left it in my printer! I cannot believe I just self-fucked my grade."

3.) "Yeah, I heard that Neil was just nerdjacking the whole time on his date. Total self-fuckery."
by NiggaBu July 8, 2011
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Originating from phrase "/self", an abbreviated/ephemistic/censored form of "fuck yourself".

Background: From the Internet, found on message boards, instant messages and chatrooms.

Definition: Vulgar expletive intended to insult offend; literally to copulate with oneself.
by Hollerback Boy January 9, 2008
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