Lucy-Duck Share definition Flag A fat guy who likes to dress up in womens clothes, but looks like a duck. Lucy-Ducks are normally pedophiles so watch out. "Lucy-Duck created a Dakota Fanning website to masturbate over" Lucy-Duck by Diego_Larrosa July 29, 2008 0 0 Get merch Get the Lucy-Duck mug. Buy Now — $32.95 See more merch