Lot's of opinions that it's the skin on your elbow--when I was a kid 30 years ago, however, it quite clearly was used as a combo-word in between "Wussy and Penis."
So if you weren't quite a Wussy (Weiner/Pussy), and you were kind of acting like a dick, you were a Weenis/Weenus.
Synonyms for weenis
On this page, you will find 30 slang terms related to weenis. Some of the top words include: wenus, weenus, weenus, smelly bridge, grindle, and 25 more.
