Sharp Knees Edit Meaning

1.

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!

See thin, fit, slim, lean, slender, sour grapes

2.

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.