Greasy Knee

To fuck a woman's knee under the unexplainable belief that it is her vagina.
The idiot gave his girlfriend a greasy knee and thought he was a stud
by TWSjr May 18, 2009
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dirty knees

Clear evidence of performing fellatio.
When they came out of the bathroom her hair was mussed; she might as well have had dirty knees.
by tman March 11, 2004
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Megan knees

Her knees so strong I might consider them Megan knees
by WhoIzYou May 07, 2021
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knee-butt

The knee-butt is a painful yet entertaining move that can be preformed on friends and ememies alike. The move is executed as follows:

The unsuspecting victim is standing so that their back is facing you. Approach the person, call out "knee-butt!" and knee them right in the ass bone. Hurts like hell. It is customary to call out the knee-butt warning before kneeing. When knee-butting friends it is recommended to knee with care, due to the potential anal crushing power of the move. Grabbing onto the persons shoulders can add a more visually dramatic element to the move, as well as increasing the power behind it.
Kevin: "Dude why are you hopping around and holding onto your ass like a fucking fairy?"
Steve: "Dustin just friggin gave me the worst knee-butt of my life!"
by Lee T September 09, 2005
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Bees knees

Lad's dad-Give this lighter to the bug-eyed, unstable looking girl smoking a cigarette. Yea, the one with the hair that looks like a mix between boy band and skater haircut, she will think you're the bees knees for that.
Lad- That's pretty straightforward and easy, that's all I have to do?
by Solid Mantis October 16, 2017
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knee-slapper

when someone slapps their knees because somethings really funny.
eg. danas brother sings and dances to 'its raining men' KNEE-SLAPPER

eg. claudias hair is ranga *slaps knee*
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knee grinder

Boobs or "tits" that sag so far they slap against the persons knees.
Dude check out that grandma shes totally got knee grinders!
by HAHA KYLE H. COLIN B. DID THIS December 12, 2010
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