Used to emphasize the extent to which one individual owns another, typically in a fight. Often times, the skull fuckee will have had their head cracked open while the skull fucker will proceed to make use of the newly created orifice.
Wow, that guy got his shit rocked on magazine street last night, buddy absolutely skull fucked him.
by the3rd January 23, 2011
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1) Something, usually a task, that is extremely difficult to perform and thus causes considerable stress as one feels completely unable to do it.

2) When a man lays on top of a woman and thrusts his penis into her mouth, often a violent action.

3) When one receives shot in the head, typically with a gun.
1) "For fuck's sake! That maths exam was a totaly skull fuck."

2) "Coming to mine for a skull fuck?"

3) "Heard about Johnny "The Hat" Bastardtooth?"

"Yeah, Billy the Arse pirate gave him a skull fuck."
by John Delonge April 8, 2006
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the act of cutting or shooting a hole in someone's head and sticking your penis in it
"That girl was so hot I'd skull fuck her!"
by Birrox February 11, 2015
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A dumb-ass, usually male and happens to suffer from S.D.S (Small Dick Syndrome) in which they must overcompensate with bad jokes that wreak of the desperate attempts of a guy with a major inferiority complex... WHEW!
Also: Dumb-ass, Fucktard, Nimrod and Wankmeisters.
Inappropriately named children's show character:
If I always make bad mom jokes beat on the sickly kid and am basically an insecure douche what does that mean kids?
Kids:
A Skull-Fuck!

OR

SF (skull fuck): You are gay
ASF (ANTI skull fuck): To put it bluntly you godamn inbred half-witted, club footed, blink 182 loving, music ruining, fucktard!... Fuck off...
by DBbonesMEMBRANE April 10, 2010
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1 damaging the eye socket, often time with a penis. And turning the brain into mush.
2 to break a skull open, or to cause serious damage to the head.
Kick my chain again and I'll skull fuck the shit out of you!
by Sick head December 24, 2015
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What you do to someone when you have an unhealthy amount of sexual intentions towards someone.
Person 1: yo i wanna fuck your sister so badly
Person 2: ok sure go right ahead
Sister: oh hell no go away im not getting skull fucked today
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Put a cap in your ass popular from saints row
Johnny Gat to ben king:Ima Skull Fuck that bitch
The playa (the protagonist you): Hope you don't mind hepatitis

Johnny Gat:What? (elevator dings all of you exit)
by Fingerblaster43 September 24, 2017
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