 The boys of South Park Elementary School are anxiously awaiting the night 's episode of Terrance and Phillip , which ended in a cliffhanger last season , while the girls at the school express disgust over the show and the boys ' obsession with fart jokes . Cartman retaliates by farting in a little girl 's face , which causes all the boys to laugh . After school , the boys gather in Cartman 's house to watch the episode . To their horror , it is then revealed that , as an April Fools Day joke , the channel is airing a new show called the Queef Sisters , about Canadian sisters Katherine ( voiced by Trey Parker ) and Katie Queef ( voiced by Matt Stone ) . They are very similar to Terrance and Phillip , but instead of fart jokes , they make queef jokes . The show starts a queefing movement across the country , and men everywhere get upset and disgusted by the queefs , although the women do not understand what the problem is . Though the women of South Park argue that there is no difference between queefing and farting , the men are revolted by queefs , while still finding their own fart jokes amusing . 
