The skin surrounding the bottom of the elbow is technically referred to as olecranal skin. However, it is commonly known as the "weenus" or "wenis". The term "weenus" is a slang word for the excess or loose skin at the joint of ones elbow. It is not a medical term, but rather a humorous term that has become popularized in pop culture. The skin on the outside and the pit of the elbow are also referred to as "wenis" and "wagina," respectively, in joke words.