You're saying to yourself: 'What the fluck is a Crusty demon?' No worries, I have the scoop. The Crusty Demons are daredevil motorcyclists from the United States, Australia, New Zealand and Europe. They're like the Jackass's of today. It's safe to say these guys do dumb things for a living and we watch. We watch like little kids patiently waiting for Santa on Christmas Eve.