To finger a girl in the vagina, or rub her clitoris. Commonly derived from the movie Fubar.
Yeah man, never banged her, I was just petting her knee caps.
by Condog4 September 14, 2009
Get the Petting her knee caps mug.
A person who will never propose. Refers to the emotional inability to get down on one knee Not to be confused with eternally single; someone without knee caps will stay in long term relationships, but will never actually pop the question.
Sis, your man has no knee caps. If you want marriage and kids you need to move on!
by CC Halpert May 26, 2018
Get the No knee caps mug.
The word used for someone who is socially awkward or someone who thinks they are strong. Commonly used as an insult
Person 1: I think that we should talk.

Person 2: no thanks.

Person 3: ok, you have sharp knee caps anyways.
by Smartcatttt January 23, 2021
Get the Sharp Knee Caps mug.