Jamie Oliver's Insanity Burger, is quite insane. I don't know how you could put all of that in your mouth. But one thing's for sure. You'll definitely want it. The guys at Serious Eats describe it:

The onions are dressed with vinegar, the cheese is slightly tangy Red Leicester, the bacon and pickles are...bacon and pickles. Then he takes finely chopped iceberg lettuce and mixes it into a sauce that one might say is 'special'—mayo and ketchup with chipotle Tabasco, Worcestershire, and a splash of booze (just go with it; it works and is silly good). The burger itself gets glazed with mustard and more of the smoky Tabasco while it cooks, then it's all piled on a seeded brioche bun, which has been briefly toasted in the bacon fat. Bonkers.

Now check it out:

Heaven.