"Breast Cancer Show Ever" is the ninth episode in the twelfth season of the American animated television series South Park, and the 176th episode of the series overall. It originally aired on Comedy Central in the United States on October 15, 2008. The episode was written and directed by series co-creator Trey Parker. In the episode, Cartman's disrespectful behavior puts him on the wrong side of Wendy Testaburger when he mocks her presentation on breast cancer awareness, which leads to Wendy threatening to beat Cartman up after school. The episode was rated TV-MA L in the United States.