Knuckle Slipping

To have your nipples sucked while hanging from the monkeybars.

After class one night two frisky law students walked to the park and he started knuckle slipping her.

by CrackerJax78 April 1, 2010

poo knuckle

The slightly less pleasurable, but still delightful act of receiving a handjob while taking a shit. The predecessor to the blumpkin.

Stephens girlfriend was too stingy to give him a full blown blumpkin, so she elected to give him a poo knuckle. He was meagerly satisfied.

by theTHICKNESS December 27, 2011

Fuck Knuckle

Someone who is intensely stupid, useless, or just plain ignorant.

"You can't clean a toilet with a rake, you stupid fuck knuckle"

by MichaelMayfall December 29, 2014

knuckle dragger

A strong or stupid person. Like someone on steroids or a caveman that can only grunt to communicate.

Call off your knuckle-draggers. Justin will pay you whatever you want.

Justin is a knuckle dragger. He believes everything on the internet is fact.

by Lagz November 6, 2013

knuckle fucker

This is someone that is too stupid to be a Jackoff.

Biff is such a Knuckle Fucker, he can't get anything right!

by JZ Blozzini February 28, 2008

Camel Knuckle

A rather large nut sack protruding through the contours of someone's pants.(usually polyester pants)

Whoa! That guy in the leisure suit has a serious camel knuckle going on.

by testiclese1 March 17, 2007

Horse Knuckles

The male equivalent of the female Camel Toes (i.e. when a man wears the crotch of his pants so high and/or tight that the seam splits, strangles and displays his genitals)

Eww, that guy is rocking those pants so tight he's got a raging case of horse knuckles.

by cracky April 26, 2005