Ass-knuckle

Someone who is clueless or stupid.

"Dude the new guy is such a dumbass!

"for real, he's a total friggin' ass-knuckle!

by Skin bone May 21, 2011

ass knuckle

The growth of an inflammed, festered, and bloody hemorrhoid that creates a groove-like affect in your feces.

Dave, don't do it. Jeff has an ass knuckle, that's not going to be fun.

by Sean Piner October 01, 2006

Knuckle-Ass

The condition of having an asshole itch so intense and deep that it feels like the only way you can properly scratch it is to stick your finger up your ass all the way up to the knuckle, and scratch your asshole from the inside.

A case of knuckle ass might be the result of poor hygiene (see hanus anus) or could just be an unlucky ass itch that anyone can get from time to time.

"I took a shit this morning and I guess I didn't wipe well enough. Now I've got major knuckle-Ass"

by smrtpntz November 11, 2011

Ass Knuckles

When a woman (sometimes a man) wears short shorts and the bottom part of her buttcheeks are showing. Mainly the part where the cheek meets the leg.

"Wow check out melissa in those short shorts you can totally see her ass knuckles!"

by Sleekfrog707 November 29, 2023