An Iron shirt is a shirt made of iron, there was a superstition that iron could drive away evil spirits, people used to carry iron in their pockets. In the reggae song "Chase the devil" by Max Romeo he sings about this.
A game in which a person in a wheelchair is captured and then rolled down an icy hill. Points are awarded based on length of time before crashing and straightness of line carved by terrifiedparaplegic.