When a female is giving a male head and scoots on her knees to keep up with the male while he backs around the furniture, making her knees ashy.
Claire: Me and my man did the ashy kneecaps last night.

Candy: girl ain't no lotion gonna fix that over night.
by DALGS13 June 10, 2013
Get the Ashy kneecaps mug.
Kneecap..stealer is so cool! She even watches anime. You should really follow her on TikTok. She might steal your kneecaps.
Kneecap..stealer holds so much power!
by Kneecap..stealer March 25, 2021
Get the Kneecap..stealer mug.
Chicks that loves giving blowjobs to where their knees are worn out
That girl is always on her knees ..that kneecap slut
by nahtannathen December 19, 2014
Get the kneecap slut mug.
When somebody who is insecure with their masculinity gets hit in the kneecap.
Jim was bored while waiting in a long line for food, so he decided to give Albert a brokeback kneecap.
by Jon, Chris, and Adam February 23, 2006
Get the brokeback kneecap mug.
A very big threat, if someone threatens your nico nico kneecaps you best be runnin. Holds power over the reverse card. Unless you have Danny Devito on you, you're screwed.
This man breaks nico nico kneecaps, aight ima head out.
by Loaf that's not buttered yet November 25, 2019
Get the Nico nico kneecaps mug.
When one falls from a great height (presumingly in a video game) and "eats shit" with a knee to face connection.

Also commonly:
Ate my kneecaps
Ate your kneecaps
Eat my kneecaps
I was playing COD4 with you yesterday and watched you eat your kneecaps
by Chief Netic January 13, 2014
Get the Eat your kneecaps mug.
friend 1: man i brought this girl over last night it got crazy “
friend 2: Were you “Getting behind the kneecaps” crazy?

friend 1: hell yea
by Papa_stem82 April 28, 2021
Get the Getting behind the kneecaps mug.