At Teddy's Halloween party, Mike the Mailman's costume - a bunny - consists of only a cotton ball pinned to his backside. This is a direct reference to the film "Mean Girls", where the girls dress as animals using minimal accessories. The actor voicing Mike is Tim Meadows, who plays Principal Duvall in the film.
Reference to movie The Warriors. When Hell Hunt starts, one of the bully kids says, "Oh kids, come out and play. " Just like in the movie.
Burger of the Day: The Jack-O-Lentil Burger
Exterminator - "Bats All Folks" and instead of rats flooding the restaurant, it's bats. It's also a parody of Porky Pig's catchphrase, "That's all, folks!"
Gretchen is wearing a 'UTI' cheerleading costume, short for Urinary Tract Infection, which tracks with Gretchen's crass personality.