In the opening sequence, Cartman says "People spouting 'Howdy neighbor!'"
In the same sequence, Kenny says "I love girls with big fat titties, I love girls with big vaginas."
So far, Kenny has died in every episode except for "Mr. Hankey The Christmas Poo," although he has had the pleasure of pointing out the supposed deaths of two other characters (Mephesto in "Cartman's Mom Is STILL A Filthy Slut" and, most recently, Cartman in "Cow Days") by turning around the famous tag line (to wit "Oh my God! They've killed Mephesto [or Cartman]!").
In "Kyle's Mom Is A Bitch (in D minor)," Cartman calls Mrs. Broslofsky a "super King Kamehameha bee-yotch."
There is no such thing as Cheezy Poofs.
Because Mrs. Cartman is a hermaphrodite (a person with male and female sex organs), he/she/it could not bear children. The genetic match with Eric could only mean that he/she/it is actually his father.
Can we PLEASE end these threads now?