South Park co-creators Trey Parker and Matt Stone wrote "Mr. Hankey, the Christmas Poo".

"Mr. Hankey, the Christmas Poo" is the ninth episode of the first season of the animated comedy television series South Park. The show's first Christmas special, it portrays the Jewish character Kyle feeling excluded from the town's Christmas celebrations and being comforted by Mr. Hankey, who can talk and sing. As Mr. Hankey does not come alive in the presence of other characters, they begin to think that Kyle is delusional. In another plot strand, the townspeople remove all symbols of Christmas from South Park to render the celebrations politically correct and inoffensive. When all the children start believing in him, Mr. Hankey finally reveals himself to everyone and scolds them for losing sight of the good things of Christmas and focusing on the bad. The townspeople apologize to Kyle, then sing Christmas songs and watch Mr. Hankey fly away with Santa Claus. Heavily influenced by the Peanuts Christmas special A Charlie Brown Christmas, "Mr. Hankey, the Christmas Poo" was the first South Park musical episode and the only episode in season one in which Kenny does not die. It is a satire of political correctness and religious sensitivity and has been described as one of the classic South Park episodes.