Ultimate Frisbee
http://www.whatisultimate.com/
Ultimate Frisbee is a game played by a large portion of CTY students. It involves rules similar to football combined with European handball.
The Rules
There are two endzones. The objective is for someone to catch the frisbee in the endzone in order to score a point. There is no contact and no movement with the frisbee, except for steps to stop your momentum. Possession of the frisbee changes when the opposing team catches the frisbee OR the receiving team fails to catch the frisbee due to factors such as wind, out of bound throws, drops, the opposing team smacks it down, etc.
There is also something called stalling. When a player catches the frisbee, a player on the opposing team may stand in front of him/her and wave his/her hands frantically while saying, "Stall one, stall two, etc." (Ah, and I remember when one day someone made a Starr pun: "Stall one... Starr two... Starr three... -Starr )This is to prevent a player from standing like a deer in headlights with the frisbee in his/her hands. The counting is to apply pressure and also so that when the stalls are up (standard is either 7 or 10 stalls), the frisbee is in the possession of the other team. The frantic hand-waving is so that when a player throws the frisbee, there is hope that the staller will be able to smack it down.
There is usually a tournament and a staff-student game. (At Lancaster 05.1, there was the Ultimizzle Frisizzle Tournamizzle which followed Poker Poker Tournamoker)