In this show Carter's missing show is replaced by a "special encore performance" of "Lumpy's Proletariat." This is a reference to the term lumpenproletariat. The lumpenproletariat was a German term that referred to "rabble-proletariat". It was originally defined by Karl Marx and Friedrich Engels in The German Ideology (1845). The term refers to the "refuse of all classes," including "swindlers, confidence tricksters, brothel-keepers, rag-and-bone merchants, organ-grinders, beggars, and other flotsam of society."