Kneesocks 

One of the two demon sisters who are the primary antagonists in Gainax's new anime Panty and Stocking with Garterbelt.

She is fairly conservative in her attire, though both the sisters wear brown uniforms. She refers to her sister, Scanty, as "Onee-sama" or "Onee-san" translated as "Dear Sister" while Scanty always refers to her as "Kneesocks-san" (Ms. Kneesocks)

While she is usually calm, she can fly into rage that causes her to turn bright red. When informed of this she claims that she "blushes easily" and returns to her normal demeanor.

Like her sister, she has a preoccupation with rules (said in the anime as "rrrurrrus", becoming a recurring joke among fans)

Scanty: Scanty!
Kneesocks: And her sister, Kneesocks!

Kneesocks by ScantyKneesocks December 8, 2010

@thehellcatspangled_kneesocks 

The best page on Instagram to find super awesome Arctic Monkeys memes. If you haven’t already, go follow them now

Arctic Monkeys fan 1: Hey, I just followed @thehellcatspangled_kneesocks on Instagram!
Arctic Monkeys fan 2: No way! I love that page. They make the best memes

@thehellcatspangled_kneesocks by Thehellcatspangled_kneesocks June 20, 2021

Polish Kneelock 

when a man is recieving oral sex or a hand job, he locks his knees with his legs completely straight in order to force the ejaculation out.

"this girl was blowing me but her parents were in the next room, so i had to use the polish kneelock to speed up the process

Polish Kneelock by Beauhawk March 12, 2008

knobsocks 

Skinny jeans worn by men

What a fashion victim wearing his knobsocks
I wouldn’t wear those knobsocks if you paid me

knobsocks by nogbadthebad September 24, 2020

kneecock

One whose cock is situated on their kneecap - also an insulting name for another person.

"You're being such a kneecock right now."

kneecock by Newb_ June 28, 2008