The delicate and supple skin on the joint of your kneecap. Noted particularly for the lithe manner in which it bends. Similar to the wenis of the elbow, only below the downstairs.
"So this girldropstrou...and she had the smoothest wagina! It was sooo hot!"
a wadgin is a friendly insult even when combined with such words as cunt..."u fucking wadgin cunt"...it pretty much means you weirdo...outcast...freak...strange mo foe...etc