http://en.wikipedia.org/wiki/Hamdog
Also from the Wikipedia Sandwich page, this one is on my list of Things Never To Try, Ever:
The Hamdog is a hot dog wrapped in a beef patty that is deep fried, covered with chili, cheese and onions, and served on a hoagie bun topped with a fried egg.
Reminds me of a billboard for an double hamburger I saw the other year in Ohio. As I said to my sister, you know you’re in the USA when onion rings are a topping.