Skullfucking 

To hold the recipient by the back of the head and insert one's penis into another's mouth forcefully and deeply. Most likely giving the skullfuck-ee less enjoyment than the skullfuck-er.

Skullfucking is fun until someone loses an eye...

Skullfucking by Tim August 22, 2004

skullfucking 

the actof forcing ones penis down a willing females throat , often leading to severe gagging but obvious enjoyment on the part of the female participant

"I skullfucked her till her spit ran down my balls"

skullfucking by JS Michaels November 23, 2003

Skullfucking 

The act of hitting someone so hard in the head with your rock hard cock that it ends up penetrating their frontal lobe.

Person 1: Did you hear about that guy with the huge cock that went around skullfucking people?
Person 2: I heard he was a little bit of a dick.

Skullfucking by TearsOnlyMakeTheSaladFresher April 28, 2016

Skullfucking 

Skullfucking is a ward to describe repeatedly jamming your two inch pinch into any open area of the skull, (Eye Socket, Mouth, Ear, etc)

I was Skullfucking Jennifer last night, and my dick bled

Skullfucking by Ery's Toe September 17, 2016