An accidental action that occurs when butt wiping. Usually occurs when one unknowingly has clogged the toilet, wipes his arse, and accidentally touches the water with one's knuckles.
I didn't know the toilet got clogged after my courtesy flush, so when I wiped my ass, I did a knuckle dip.
Finger fucking a guy's girl under the table at a bar while he is at the table, then punching him in the face afterwards, karate style, with two fingers, like Chuck Norris.
I knuckle cocked that douchebag and took a shot of Jack to top off the night.
The hottest man of Hunter x Hunter ever in the world of Hunter x Hunter. Also the most underrated
Me: Bruh, I'd let Knuckle Bine get it.
You: Dang me too. you have immaculate taste.
A busted load of jizz all over your fingers after rubbing one out.
Hand me my gak towel. I need to wipe up this knuckle custard.
I apparently didn’t wipe my hands good after jacking off this morning. I still got knuckle custard on them.
A chronic, habitual masturbator. Someone who is always giving himself a tug. Typically addicted to porn, stalks Facebook, Insta and other media for pics to fap off to.
May also be used as a derogatory term for somone who’s a POS.
My neighbor is a real jack knuckles. He’s always giving himself a wank online.
My uncle is a jack knuckles. I catch him tossing off every time I walk past the den.
Fuck that guy. He’s a jack knuckles.
1. A name for a professional who is completely incompetent in his field. (ie an accountant in rural Kansas)
2. A tiny penis.
That damned piss knuckle did my taxes, and now I'm being audited by the IRS.
or
My piss knuckle hurts when I pee.
Sticking a finger in someone's ass at least to the second knuckle of your finger of first knuckle of your thumb.
Hey, that dude really likes when his girl gives him a trunk knuckle around back while getting a blowie.