Grundle Knuckle

Grundle Knuckle is when the taint is rubbed or massaged to cause a dude to cum

Bruce was getting an old fashioned HJ and Stacy wanted to speed things up and gave him the old Grundle Knuckle to help him cum more.

by DanielleWhittier May 5, 2023

Junk Knuckle

The point at which a penis bends.

Dude, his wang is so crooked it has a junk knuckle

by Whcgonzo October 28, 2011

fart knuckle

When you catch a whiff of your unwashed hands and they smell like ass.

Can you give me some hand sanitizer, friendo? I've got a bad case of fart knuckle.

by BuckBuck McGee June 20, 2025

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....

by Frank Fontain June 15, 2019

bubble knuckle

Old lady arthritis fingers and/or a camel toe

Dang.. Barbara has a bubble knuckle

by Alpha Feemale February 3, 2024

Knuckle dragger

Simply put, a knuckle dragger is a skier's term for someone who snowboards. And for that I will always be a proud knuckle dragger!

That knuckle dragger is way cooler than me and my ski poles.

by BoysATimeBomb February 15, 2021

Knuckle Cluster

When you're in bed with your man and he lodges his entire fist into your cooch. he then squirms his hand around until he sees his knuckles through your belly. Once seen they instantly cum.

Ronald: Did you hear? Samantha got knuckle clustered by David
Arnold: Really?
Ronald: Yeah. She died mid-way and he sat there cumming. He soiled the bed sheets completely white
Arnold: Damn. It was good when I railed her ya'know?

by I'mAGlugGlugVacuum6900;) January 11, 2023