DickDog
Mythological beast of South-Western North American lore. It has the body of a domestic dog with a dog's head in the place of genitalia, and a massive human phallus for a head. Legends state that these lonesome creatures led Paul Bunyan to the tree under which he would master all the karates, and appear in small packs when a great number of domestic beers are opened but not fully consumed, presumably to mourn. They are docile, but spit when threatened.
Legend says this here Prarie's home t' the dickdawg. Ye'd be better off waitin' fer sunrise er load yer horse up with tissue paper, stranger.

The dickdog howls in the distance....