Called when player puts his hands on opponent or his equipment. Means the goal is disallowed when done by referee. By a linesman, it means no off-side or icing. Called when player hooks opponent with his stick. Water is sprayed over a concrete floor that contains freezing pipes.
Some rinks vary slightly.
If there's a tie when regulation play is over, a 5 player shootout is played. If there is still a tie, a sudden death shootout occurs until there is a winner. Six ounce of vulcanized rubber, three inches in diameter and one inch thick, makes up a hockey puck. It's frozen before entering play to make it less likely to bounce. Some slap shots travel up to 100 mph.