South Park: Season 12, Episode 9

12 - 9: Breast Cancer Show Ever

Wendy gives a presentation on breast cancer awareness month but Cartman, in typical fashion, decides to make a mockery out of it. A furious Wendy challenges him to a fight, but all bets are on Cartman. Now with an after school fight between the two looming and everyone watching, Cartman realizes he may lose a fight to a girl.