One who enters nothing but thinly veiled inside jokes about their own dicks or their friend's dicks on urban dictionary. An urban dick canary is usually very full of himself, and has very little respect for the noble process of defining words.
1. The only definitions Paul ever enters on Urban Dictionary pertain to the bizarre appearance of his revolting meat wand. He is such an urban dick canary.
2. Bill: Dude, Joe, your bulge looks like you stuffed an armadillo down your pants! Let us put it on Urban Dictionary under Joe's bulge and give an obscure, drunken definition!
Will: You guys are such urban dick canaries.