1. A game played most often in middle-school gym class. Usually fun, although often ends up to the social exclusion of nerds, dorks, etc. Can also be very painful to play. Essentially, people throw foam or rubber balls at the people on the other team. If you're hit, you're out,if you catch it, the thrower is out. Usually enjoyed by jocks and athletic people. Un-athletic people, such as myself, always leave the dodge ball field to a stream of boos and "You suck for being a wimp!"s. It's still damn fun, though. Is currently being banned from many schools.
2. The balls used in said game.
Nerd: *Throws ball*
Jock: *catches ball easily* YOU SUCK, WIMP!
Nerd: *leaves field*
Nerd's team: YOU SUCK AT THIS GAME! LOSER!
I got a concussion because I was hit with a dodgeball thrown at the speed of light by that jock over there.