A term used to describe the size of a man's penis without having to give specific details. Being "in the outrageous zone" means you have a huge dick. (over 10 inches)
See also the Frankenstein Zone and the Happy Zone.
Guy 1: "It's times like these when I wish I had a 12 inch penis. Sometimes 10 just doesn't cut it."
Guy 2: "Naw, man. I wouldn't want to be in the Outrageous Zone. It would get in the way."