Chef's Chocolate Salty Balls
Many film watchers come to South Park for the festival.  The magical piece of feces, Mr. Hanky the Christmas Poo tells Kyle that the newcomers are killing him.  This is because their waste comes from healthy food and not the unhealthy food that South Park residents eat.  Kyle tries to warn people about this, but no one believes him.  Mr. Hanky almost dies, but he is saved by eating Chef's chocolate candy.