Elaine's quote "The dingo ate your baby" is a reference to the film
A Cry in the Dark
in which an Australian woman, when accused of the murder of her child, claims a dingo ran off with it. The film is based on a true story.
After George receives a bill from his chiropractor, he says, "Seventy-five bucks? What, am I seeing Sinatra in there?" Coincidentally,
died the same day the last episode of Seinfeld aired on NBC.