Yes that’s a Hog Dog in a Pickle – Meet the Grand Rapids Dill Dog
The dill dog is exactly like it sounds, a hot dog where the bun is replaced by a pickle.
1 Bun, on South Division in Grand Rapids, sells the dill dog for $2.20. The photo above appears to be a coney-style Dill Dog with chili, cheese and onion. I even seen some Heinz "Chicago Dog Sauce" better known as ketchup on that dill dog.
The Dill Dog appears to be a champion of pickle efficiency, by removing the wedge from the pickle to place the dog, the remnant pickle piece creates the prefect pickle-spear accouterment.
The menu at 1 Dog also includes burger dogs, corn dogs and a sloppy J.