slack knuckle 

A male version of the infamous camel toe, esp. when flaccid.

"Holy cow! That is the biggest slack knuckle I've ever seen!"

"That guys pants are so tight his slack knuckle is poking out like crazy."

slack knuckle by Jadder Obbins July 7, 2008

Thumb Knuckle 

Port Huron, Michigan
Located around the Knuckle of Michigan

Scotty- "Hey, im headed up to Thumb Knuckle for the weekend"

Tommy- "I Have family that lives there!"

Thumb Knuckle by Super Jenius October 13, 2008

knucklenuts

a fucking loser

Andrew Batley is a knucklenuts

knucklenuts by Marc Gimbel February 16, 2004

poop knuckle 

When wiping the ass after an exceptionally productive poop, a knuckle is accidentally raked across the large, volcanic cone-shaped pile.

I must remember to give myself a courtesy flush to keep from getting these damned poop knuckles.

poop knuckle by padabo October 2, 2011

Moose Knuckle 

The slang name for the labia which is known for a very experienced woman or whore to have. (See Camel Toe or Clam Shell for like definition. These are the same, but young girls or young women to have these.

Damn, did you see the fucking "Moose Knuckle" on that whore.
(See Sloppy Moose Knuckle and Moose Tracks)

Moose Knuckle by JLOH December 15, 2004

Knuckle  

to fight basically.

yo i was really tryna knuckle tonight, if u was gone knuckle i would be on ur head.

Knuckle by Tyre And Brandon- crestmont April 21, 2007

moose knuckle 

bulge found in girls pants

a moose knuckle is stickin out of that girls pants

moose knuckle by steve/matt August 28, 2006