The game of shinny is an informal type of hockey, either on ice or as street hockey. There are no formal rules or specific positions, other than the goaltenders, and the goals themselves may be marked simply by found objects. Bodychecking and lifting or "roofing/reefing the puck" (shooting the puck so it rises above the ice) are often forbidden because the players are not wearing protective equipment. It is often called pick-up hockey.

Shinny is informal enough that the pucks and sticks are often makeshift. During the American Great Depression, for example, northern boys used tree branches or broomhandles as sticks, and a tin can as a puck. (After many games, the can would begin to resemble a metal ball.)

The name is probably derived from the Scottish game shinty. Shinny hockey, a primarily Canadian term, is usually called Scrimmage or Pick-up Hockey in the United States.