While the kids are on an educational field trip to a living museum, Cartman makes Butters sneak away from the class to go to the amusement center located next door.
Keywords: adult-animation , adult-humor , best-friend , censorship , colorado , controversial , elementary-school , group-of-friends , hilarious , irreverent , offensive , parody , satire , sitcom , social-satire , absurd , watch-series-online , amused , joyous