Pig knuckle

When you cross your index and middle finger, then your pinky and ring finger. Then insert two in the pink and two in the stink.

Last night I pig knuckled my wife.

by Mast3rbaySEAN March 2, 2019

knuckle beefing

To violently finger fuck a girl or to ultimately become knuckle deep in her vagina while furiously finger fucking.

Dude! I was knuckle beefing that girl from the party last night so hard.

by blowjobjack December 28, 2019

Sponge Knuckle

Close to the idea of a moose knuckle or a camel toe. The only difference is that the woman is really fat and she wears tight pants and you can see the cellulite through them, looking very similar to a sponge.

I was walking down main on a Friday night. Bitch had white yoga pants on and you could totally see her sponge knuckle.
hanging lowwww

by Carlypants May 19, 2013

knuckles forward

Going all out as in wrapping knuckles around the motorcycle throttle and reving it up.

I'm going knuckles forward on this project.

by Makerofthings September 27, 2013

knuckle sando

A punch in a the mouth!

G1: I ran into my ex the other day
G2: ohh, did you give him a knuckle sando?

by Jaydesai June 11, 2023

Bloody knuckle

The sexual act of cutting ones knuckle (2-3) and putting their fist in their partners vagina or anus to "claim dominance"

Heath: why are your knuckles cut
Avery: oh... Let's just say I gave my girlfriend a bloody knuckle
Heath:oh my God dude,why?

by Hamsir August 28, 2022

knuckle wanker

The act of pleasuring yourself by repeatedly punching yourself in the cock.

You're a knuckle wanker.

by Arnold Shwartzenigger October 8, 2019