Fast food is great and all, but some concoctions can get really out of hand.

Like when KFC revealed their Double Down chicken bun sandwich. Incredible.

And when Burger King released a bacon sundae.

How about when Dunkin' Donuts gave us the glorious glazed donut breakfast sandwich?

Or when Cinnabon gifted us with a pizzabon.

Fast food can get... interesting... so tell us: What's the weirdest American fast food item you've ever heard of?
