The most unholy. A Double-Down placed inside a Baconator. Sometimes considered suicide, or cruel and unusual punishment if purchased for someone besides oneself.
Consumption is usually followed by sharp abdominal pains, and/or vomiting.
Jon: "So I heard Osama wasn't actually shot to death..."
Mark: "Oh yeah, what happened?"
Jon: "He was offered a doublenator, and died of a massive heart attack"