BASEketball is a 1998 American sports comedy film co-written and directed by David Zucker and starring South Park creators Trey Parker and Matt Stone, along with Yasmine Bleeth, Jenny McCarthy, Robert Vaughn, Ernest Borgnine, and Dian Bachar.
The film follows the history of the sport of the same name (created by Zucker years earlier), from its invention by the lead characters as a game they could win against more athletic types, to its development as a nationwide league sport and a target of corporate sponsorship.
This is the only work involving Parker and Stone that was neither written, directed, nor produced by them, although Zucker himself has stated that Parker and Stone contributed innumerable suggestions for the film, most of which were used.
BASEketball is credited with coining the Internet slang term "derp".