- a deadly game of chance in which a person spins the cylinder of a revolver holding only one bullet, aims the gun at his or her head, and pulls the trigger
- any activity potentially destructive to its participants
- A stunt in which one spins the cylinder of a revolver loaded with only one bullet, aims the muzzle at one's head, and pulls the trigger.
- An act of reckless bravado.
- (idiomatic, games) A deadly game in which a person loads a single bullet in the cylinder of a revolver, spins the cylinder so that the location of the bullet is unknown, points the weapon at his/her head, and pulls the trigger. In its most lethal form, played by multiple participants each of whom takes a turn until the weapon discharges.