wee-wa-dee Share definition Flag 1.an extremly small penis. 2.word used to babies or dogs for made up language. 3.to define penis. He has a wee-wa-dee. His wee-wa-dee is small. wee-wa-dee by Josefromt-town October 12, 2006 0 0 Get merch Get the wee-wa-dee mug. Buy Now — $32.95 See more merch