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Where you put your knees inside your shirt and on webcam gives the appearance of giant boobs.
I saw an emo chick on chatroulette with huge tits. It was actually an emo dude with kneeboobs
Kneeboobs by RunJun February 26, 2011

teebone kneebone 

A process by which the perpetrator thrusts his cupped fingers behind the victims knee, who is sitting down just beside the perpetrator. Preferably in a Classroom situation. The perpretrator then lifts the under section on the victims knee upwards until the point where a dislocation wudnt be out of the question.
I was streaming through my history paper when Bruno the bastard teebone kneeboned me.
teebone kneebone by .zola January 21, 2007

Nico Nico Kneecaps 

A phrase used out of annoyance when someone says "Nico Nico Nii" one too many times.
Person 1: Nico Nico Nii!
Person 2: Nico Nico Nii!
Person 1: Nico Nico-
Person 3: Dude. If you don't stop, I'm gonna break your Nico Nico Kneecaps.
In Africa, a derogatory word for people that is worse than calling them a cunt or dick. Because it is lower on the body than a cunt or dick.
I can't stand my boss, I have not seen a raise in 2 years. What a kneecap!
Kneecap by Nessambugk June 2, 2018

September 23: Knee-a-guy day 

September 23, the day where you get to knee a guy where the sun doesn't shine. They get to slap our ass on April 11th? We get to knee them n the balls.
Jason: OW WHAT THE HELL

Katie: Its September 23: Knee-a-guy day, darling. Hope you make it to class in time.😘

knee jerk 

An orthopaedic surgeon who happens to also be an idiot, despite both the excellent training and higher than average IQ.
I'm glad that the Knee Guru replaced my knee, but he is a total knee jerk when it comes to bed-side manner.
knee jerk by Quills13 January 23, 2011