Hockey is a sport
I think I've seen hockey on TV. Don't you play it on ice or something?
they play in teams of two against each other 
Yeah, I'm pretty sure I've seen it. Isn't that where the players have long sticks and are shooting a puck?
Hockey
Hockey is a sport in which two teams play against each other by trying to manoeuvre a ball or a puck into the opponent's goal using a hockey stick. There are many types of hockey such as bandy, field hockey, and ice hockey.
In most of the world, hockey refers to field hockey, while in Canada, the United States, Finland, Sweden, Latvia, the Czech Republic and Slovakia, hockey usually refers to ice hockey.
Etymology.
The first recorded use of the
field sport that involves people "hitting each other with sticks and then running away for no readily-apparent reason", the result of a race memory of a war with an ancient and evil alien race thousands of years ago
- Calvinball - a game where there are only two rules: players must wear masks, and you can never play the same way twice; "Calvin and Hobbes" by Bill Watterson
- HyperBlade - an ultraviolent variant of ice hockey played on an ellipsoidal rink with either a puck or a