look up any word, like usuratonkachi:
Unbeknownst to many, the knee, like the elbow, has a wenis. This flap of skin is known as the kneenis.
I grabbed your kneenis!
by DepecheMoses July 03, 2006
Like the weenis of the elbow, a kneenis is the bit of skin covering your knee
My kneenis feels like a pig
by mynameisgary March 18, 2009
skin on the back of your knee
My kneenis itches.
by crazygasbag May 10, 2010
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.
by The David November 13, 2003