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?

Bloody knuckle by Hamsir August 28, 2022

bloody knuckle 

When 2 girls are each on their period and scissor each other.

Jen and Pam were both on the rag, and horned up for eachother, so they got into scissor position and bumped the bloody knuckle.

bloody knuckle by KNuckle PUck April 24, 2010

Bloody Knuckle 

To fist a girl while she is on her period.

Oh man, my girlfriend was on her period so I gave her a bloody knuckle.

Bloody Knuckle by Ninjawrestler March 29, 2009

Bloody Knuckle 

The act of fisting or punching a girls vagina during her period

emma- my man bloody knuckled me so hard last night
Darla- girl you a freak

Bloody Knuckle by tdagreat May 20, 2018

Bloody Knuckle kiss 

To kiss one's fist and immediately or reluctantly punch someone you feel affection for or someone meaningful towards you. Sometimes leading them to bleed.

Me : A girl from my class kissed her fist and punched me.

Friend : That's a bloody knuckle kiss man, be lucky she only gave you a bloody nose.

Bloody Knuckle kiss by Mellow Merc December 14, 2018

Bloody Knuckle Jefe 

One of the most disgusting things you could do to a lady. It is to stick four of your fingers up her vagina while she's on her period, then you take a covered-in-blood hand outta there.

Yo man, i gave my chick a bloody knuckle jefe!!! Dude, how bloody was it? Took me a couple of hours to wash it off...

Bloody Knuckle Jefe by Rod1337 September 12, 2009

bloody knuckle fight 

A type of boxing/street fighting with no padding. Both the knuckles and face bleed, so blood gets from fists to face and vice-versa. There is not an obvious winner since both persons involved are seriously injured on at least one part of their body. However, the person last conscious is usually considered the victor

X: I got in a bloody knuckle fight. My hands are all cut, one of my hands is broken, and so are three fingers on my other hand. Also I got punched in the face that gave me a black eye, and almost ko'd me.
Y: Damn, sounds brutal. You win?

X: Who knows. Both of our hands and faces were messed up and we were both punch drunk

Ex2:
X: I won a bloody knuckle fight with one hit, although that broke my hand
Y: you k.o.'d him with one hit!?
X: yeah, but my hand is shattered my hitting him in the face.

bloody knuckle fight by Darksoul538635375935 December 31, 2016