glazing a knuckle 

From what I understand, after you jack your dick, the come runs down the side of your dick and onto your hand. The result looks like the substance used to glaze donuts or cinnamin rolls. I never said it was pretty.

Me: "Ray-Ray, where the fuck is Lil' Earl?"
Ray-Ray: "That fool is in the bathroom, galzing a knucle."

glazing a knuckle by Doggy Fizzle June 6, 2003

Buck Knuckle 

The male version of the camel toe. When a man wears pants that are so small and wears them so high that his balls are visable through the pants. When pants are warn like this, his balls straddle the middle pants seam (just below the fly) thus dividing them causing the appearance of a buck knuckle. Similar to a camle toe.

Dude, since you gained weight you might want to consider getting some bigger pants. You're startin to sport some serious buck knuckle.

Buck Knuckle by macenin April 4, 2009

ten knuckle shuffle 

When masterbating or having sex and instead of using one hand, you use two, hence the term "ten knuckle"

Yo, Samantha gave me the best ten knuckle shuffle I've ever had last night!

ten knuckle shuffle by QuinoaSalad March 12, 2017

Knock off a few knuckle soldiers 

The act of engaging in male masturbation; specifically connoting a sense of launching troops into battle

Where in the bible does it say a man can't knock off a few knuckle soldiers in the privacy of his sitting room 'cos I don't have a DVD player? - Peter Griffin -

Knock off a few knuckle soldiers by drop_the_hand June 16, 2009

German Knuckle Cake

Fisting with a vengance. Giving the anal blitzkrieg.

Chris loves to get a German Knuckle Cake for his birthday!

German Knuckle Cake by Big_Daddy_Shame_Train April 19, 2006

rhino knuckle 

related to the camel toe but the clitoris is protruding give the affect of a rhino horn

thats a bit more than a toe, thats got a horn!
mate, thats a rhino knuckle

rhino knuckle by dst1ng November 17, 2010

Skipper’s Knuckle 

When your ass is being fingered so vigorously and intensely by a partner with fat, sausage fingers that you burst a vessel/hemorrhoid.

I gave Roger a skipper’s knuckle last night.

Skipper’s Knuckle by Eaton Holgoode April 19, 2018