Kneecap..stealer is so cool! She even watches anime. You should really follow her on TikTok. She might steal your kneecaps.
by Kneecap..stealer March 25, 2021

by nahtannathen December 19, 2014

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 28, 2006

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.
by Loaf that's not buttered yet November 25, 2019

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
Also commonly:
Ate my kneecaps
Ate your kneecaps
Eat my kneecaps
by Chief Netic January 13, 2014

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
friend 2: Were you “Getting behind the kneecaps” crazy?
friend 1: hell yea
by Papa_stem82 April 28, 2021

The following definition occurs if Carl was a weeaboo, and Paul needed therapy from the trauma. (Llamas With Hats)
by -trash- February 13, 2022
