A crusty knuckle is when you have your girl stimulate your prostate by shoving her middle finger up your anus. Look at her knuckle once she is done.
I blew a load so hard while Christina was giving me a Crusty Knuckle.
A term for a woman's clitoris. Because of its location in between the legs, it almost resembles a knuckle on a hand in between two fingers.
I got her off by rubbing her crotch knuckle.
A hand job or male masturbation with 1, 2, or 3 knuckles of a finger in the anus to stimulate the prostate and cause a sudden intense orgasm.
Dude, I finally got a 3 Knuckle Chuck! I came everywhere!
You're definitely gonna buck when she hits you with a 3 Knuck Chuck!
When you're prairie dogging it so hard it makes the ass of your pants protrude.. much like a moose knuckle but with feces..
Oh man I was so close to shitting my pants that I had a fudge knuckle..
When you have uncontrollable rectal leaking and it ends up all over your testicles and inner thighs. You reach down to check what has happened and your hands and knuckles get covered in the devils fudge.
Phil : I am so embarrassed, i ate a dodgy vindaloo last night and it has played havoc with my nether regions.
Damo : how could you tell what had happened?
Phil : i reached down to check and ended up with a bloody fudge knuckle !
Damo : i have to go now, i think i left the iron on....