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