Frink shows up to the Civil War re-enactment with a spider tank reminiscent of the tank Dr. Loveless created in the Wild Wild West (1999) movie.
When Marge is watching the video of Apu's wedding, Homer gets up with the band and tries to sing the same song from the wedding scene in The Godfather.
The title is a pun on the Sade song, "The Sweetest Taboo."
In Homer's dream about Apu's infidelity, Apu calls him a eunuch. When he wakes up and looks up "eunuch," Homer screams. A eunuch is a castrated male or a female who finds neither men or women sexually attractive.
Blackboard: "I will never lie about being cancelled again"