The title is a reference to the motto found on the obverse of the Great Seal of the United States, "e pluribus unum."
When Joe, Cleveland, and Quagmire discuss tax refunds, Charlie Brown in a ghost costume claims he only “got a rock.” This parodies a scene from the Peanuts Halloween television special It’s the Great Pumpkin, Charlie Brown in which the characters trick-or-treat and Charlie Brown consistently receives rocks.
When Quagmire’s sex doll shuts down, it says “Goodbye,” as the Internet service provider America Online does when users log-off.
The scene in which Peter insists on drawing the repairman nude parodies the scene in the 1997 film As Good as It Gets in which Greg Kinnear draws Helen Hunt nude.
Lois gives Asian Reporter Tricia Takanawa a televised tour of her house. This is a parody of the tour First Lady Jackie Kennedy gave CBS newscaster Charles Collingwood of the White House in 1962. Lois is dressed in a pink suit similar to the one Jacqueline Kennedy wore the day John F. Kennedy died.
Peter sings “Can’t Touch Me”, in which he boasts of his diplomatic immunity. The song parodies the 1990 hit “U Can’t Touch This” by MC Hammer. Hammer himself appears in the clip, and Peter brags that Hammer can’t sue him for use of the song.
During the song, Peter sings “Just like the bad guy from Lethal Weapon 2, I’ve got diplomatic immunity, so Hammer, you can’t sue.” In that film, Joss Ackland’s character plays a diplomat who runs a drug smuggling ring out of the South African consulate in Los Angeles.
Anti-litter mascot Woodsy Owl appears during the song in reaction to Peter’s littering.
The U.S. Military refers to the stand-off against Petoria as “Operation Desert Clam,” a parody of Operation Desert Storm, their name for the 1991 Gulf War.
The political roundtable talk show in which the guests are separated by four squares ends with Alice from The Brady Bunch appearing in the center square as she did in the show’s theme song.