Cartman's Mom Is a Dirty Slut

"Cartman's Mom Is a Dirty Slut" is the thirteenth and final episode of the first season of the American animated television series South Park. It originally aired on Comedy Central in the United States on February 25, 1998. The episode is the highest viewed episode in the entire South Park series, with 6.4 million views. It is part one of a two-episode story arc, which concluded with "Cartman's Mom Is Still a Dirty Slut". The episode follows Eric Cartman, one of the show's child protagonists, becoming curious about the identity of his father. He discovers that his father is most likely a man his mother had sexual intercourse with during an annual party called "The Drunken Barn Dance". Meanwhile, his friends Stan, Kyle and Kenny participate on America's Stupidest Home Videos, after filming Cartman playing in his yard with plush toys.

The episode was written by Trey Parker and staff writer David R. Goodman, and directed by Parker. It featured a guest appearance by comedian Jay Leno, who provided cat sounds for Cartman's cat. "Cartman's Mom is a Dirty Slut" had a cliffhanger ending; the identity of Cartman's father was intended to be revealed in the second season premiere, but Parker and co-creator Matt Stone wrote an unrelated April Fools' Day episode instead. This was much to the dismay of South Park viewers. This episode was met with positive responses from critics.

In the summer of 2013, fans voted "Cartman's Mom Is a Dirty Slut" as the best episode of season one.^[1]