knuckle fuck

A term used to describe a person who is a general dumb-ass.

"Ernest is a real knuckle fuck" or "What a fucking knuckle fuck"

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knuckle fuck

to put it simply, fisting.

i knuckle fucked three chicks and a dude last night.

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knuckle fuck

its not punching, its when you fuck someone hard in the face....with your knuckles

johnny t-bagged my roommate and then left with the pizza so when he came back looking to borrow some money, i knuckle fucked the shit out of his face

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knuckle fucking

Another term for beating off.

"Hey did James pull that girl last night"
"No he just stayed at home knuckle fucking all night"

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Knuckle fuck

When a guy's dick is soft so he squeezes the base and tries to fuck till its hard. While holding the base he hit's the other person repeatedly with his knuckles.

Well if it goes soft we have to take a break. I hate when a guy tries to knuckle fuck me. I end up with bruses.

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Knuckle-fuck

The act of sexy punching (fisting).

Margaret, come here. I wish to give you a knuckle-fuck

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Knuckle Fucking

Sticking a finger knuckle deep in a mans ass.

Tom’s wife was knuckle fucking him last night.

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