Cretinville Share definition Flag Where a cretin would lurk, hideout, and act creepy. Where the most shady of weasels spend their days. No person ever wants to visit. Shady Grady lives in cretinville.Hey baby Babel go back to cretinville. Cretinville by Sociable December 8, 2010 0 0 Get merch Get the Cretinville mug. Buy Now — $32.95 See more merch