dirty knuckle

verb; when you forcefully go knuckle and/ or wrist deep to successfully penetrate ones' anus. (leaving you with dirty knuckle)

Sean- "what the f**k is on your hands?

Kevin- "I gave my girl a dirty knuckle last night, I guess I missed a spot"

by big pimp nasty September 15, 2013

dirty moose knuckle

A fat chicks dirty pussy

Damn look her dirty moose knuckle

by Anggelos April 7, 2015