When one person sticks their hand up another person's butt whole (fisting) and thenthat person clenches their butt and when the person pulls their hand out they have a wrist band of poop around their wrist.
WRIST BAND O' DOOM:: rarely seen, it consists of a head band, but is worn on the elbow, it is said it keeps uncontrollable sweating problems at bay.
the inventor of this odd contraption is byron