Theatresports
Theatresports is a form of improvisational comedy which is performed in a competitive situation. Theatresports is a trademark of the International Theatresports Institute (ITI) and was originally developed by the improvisational theatre pioneer, Keith Johnstone who licensed the term to the ITI.
Various "games" are popular, ranging from moving people around while they deliver dialogue, to commenting on slow motion actors competing in an everyday situation. Recently, this sport has been made popular by the television show Whose Line is it Anyway? (which has both a British and an American incarnation). Theatresports, like the caber toss requires a training to be really enjoyable.