sharp knees 

A judgment leveled against an otherwise perfectly proportioned, if not slightly trim, and pleasant looking woman. Generally uttered by a male who is way below her class.

Yeah sure she is really nice looking, but I wouldn't hit that. I mean look at those sharp knees!

sharp knees by Dwight Frank September 30, 2005

sharp knees 

When a woman, specifically a celebrity or actress, is so thin (as to imply she is anorexic) that her knees appear sharp or pointy.

Calista Flockhart has sharp knees.

sharp knees by the black rabbit April 29, 2005

Sharp Knee Caps 

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.

Sharp Knee Caps by Smartcatttt January 23, 2021