The title is a reference to the 1966 Peanuts Halloween special, It's the Great Pumpkin, Charlie Brown.
Rallo refers to David Letterman's admission of having sex with his employees after losing his tooth.
The cutaway gag of Cleveland at David Carradine's funeral is a parody of the infamous funeral scene in the "Chuckles Bites the Dust" episode of The Mary Tyler Moore Show.
When Cleveland, Donna, and Rallo discover their house has been vandalized, Donna exclaims "That's our house!" followed by Cleveland saying "In the middle of our street? That's madness!" referencing the song "Our House" by English band Madness.