This is the first time where Heidi Turner is shown in Garrison's class.
Butters' female name, "Marjorine", is a take on "margarine", a substitute for butter.
The old man who visits the Stotch house gives Butters' dad the same warning as Jud Crandall (Fred Gwynne) from Pet Sematary (1989). In that movie, Jud famously warns the protagonist that "sometimes, dead is better."
The color of Butters' casket is the same as Butters coat.
While Butters used the name Marjorie for his (her) disguise, Marjorie was also the middle name of musician Judy Collins. Her birthday was May 1st, the 121st day of the year, it should also be noted that 121 is also the digits for a hexadecimal (base 16) number that converts to decimal (base 10) as 289, and that October 16, the 289th day of the year, would also be the birthday of actress Suzanne Somers who was mentioned in two previous episodes of South Park, and that Butters would hold a box for a Suzanne Somers product in an earlier episode about protesting the killing of baby cows.