He named this "sandwich" the McChurger. The McChurger is a double cheeseburger with a hot n' spicy McChicken patty between the two burger patties. If this doesn't quite make sense it is layered like so...
Bun
Cheese
Beef Patty
Hot n' Spicy chicken patty
Beef Patty
Bun
This really does come off as a disgusting combo but please just order it, and eat it... it is simply amazing, and after you have tried it, (and i KNOW you'll like it) Join the movement to get the "McChurger" on to the McDonalds Menu and into everyones mouth and soul! (I will post pics if you need some convincing)
Disclaimer: This sandwich could leave you on the toilet for up to a week... but it is totally worth it.