Hermes pops a pill when he says he has a hankering for a useless remedy created by a schoolteacher. The name on the bottle is Airbunk, a joke reference to the Airborne dietary supplement created by schoolteacher Victoria Knight-McDowell in the early 1990's. The effectiveness of the supplement was sketchy at best and the company was sued for false advertising.
When Yance and Fry are wrestling, Fry shouts "My underbite!" Matt Groening's drawing style for most of the characters on Futurama (as well as The Simpsons) have a very prominent overbite. Fry's overbite is one of the most prominent in this series.
Josh Gedgie is seen wearing a t-shirt labelled "YP17," a reference to the term "yellow pigs" which appears as an Easter Egg in mathematics textbooks by Michael Spivak and refers to the mascot and favorite number of the Hampshire College Summer Studies in Mathematics (HCSSiM), a long-running summer program for talented mathematics students at Hampshire College.