Definitions by The David

kneenis 

A penis located on the kneecap.

Good thing the guy with the cleets had hit my shin otherwise he would have torn up my kneenis.

kneenis by The David November 13, 2003

pengina 

There are two types of pengina:
Type 1: A vagina at the end of the penis where the urethra is also located.
Type 2: A vagina with a penis inside that eviscerates during intercourse.

When I was having sex with her, her pengina poked my ballsack.

pengina by The David November 13, 2003