The act of masturbating and then ejaculating on another's back.
That crazy bum just gave my little sister a Wooly Willy!
dari Twice Nightly Senin, 14 Januari 2013
Like a tea bag, to stick your saggin balls on someones face while they are sleeping, but shave you balls while doing it, and arrange the pubes into the shape of a Moustache or Beard
Look, I Wooly Willy'd Ian, and now he has a beard.
dari Addiary Jum'at, 16 Juli 2010