Bruce knuckle

The shape made at the bottom of a mankini. Female versions include the "moose knuckle" or "camel toe".

That Bruce Knuckle makes me not want to assume the gender of that dancer.

by :j.ustin January 4, 2018

pecker knuckle

When a man's penis hangs a sharp left or right, also known as Captain Hook....eye eye captain.

Did you see the pecker knuckle on that guy.

by ShellBell*0ICU812 March 22, 2023

Spit Knuckle

Eye contact is essential! Spit on the knuckles of each hand, take the clitoris in between the knuckles and slide both of the knuckles up and down gently but firmly.

Lady: Will you Spit Knuckle me, please?
Me: I thought you'd never ask!

by BranTrevArth January 22, 2022

Knuckle Fuck

When hitting a large jump (booter) mainly on skis there is a roller or knuckle that the jump sits on. If you hit that jump and land a little short that is called a case. But if you case the jump so hard that you are ejected from your skis and you thrust your body so hard against the landing that is called a Knuckle Fuck because you are fucking the knuckle.

Dude, that guy hit the pro jump line and knuckle fucked the last jump.

by AbsorbedSpoon3 July 5, 2019

mayonnaise knuckle bump

When two bros go to knuckle bump each other and one has knowingly left ejaculation on his fist.

Ben: Hey brotha, what’s up? *offers knuckle forth for knuckle bump*

Chad: no man, I’m good, looks you got that mayonnaise knuckle bump there…

by JessaCali September 10, 2023

Minnesota Knuckle

When the randomly hot person from the Midwest sneaks a corn-finger finger up the back door without any forewarning mid-fellatio, knowing full well you’re a bootyhole virgin.

You know, I really thought I liked her but then she hit me with the Minnesota Knuckle, and now I’m not sure what to think!

by Spumoni September 10, 2021

Bag of Knuckles

Giving someone a fist pound.

"What's up man? Gimme a Bag of Knuckles!"

by MilesDSP December 12, 2009