Spider Pig in The Simpsons Movie
Homer names his friend "Spider Pig" after he makes it walk on the ceiling. Later, the pig is called "Harry Plopper" in a parody of, well, you know. There was a special pig-centered movie trailer made for the film that is well worth seeing. A version of it can be found here. The trailer includes the great line "The other white meat has a taste for vengeance."
Homer's song "Spider Pig," a takeoff of the 1970s "Spiderman" tune, is probably stuck in millions of people's heads this summer. The lyrics: "Spider pig, spider pig, does whatever a spider pig does, can he swing, from a web? No he can't, he's a pig." There's an overly orchestrated version in the film's credits and on the official soundtrack.
"Spider Pig" has made it into the news in an odd way. One Australian guy is running a petition on Facebook to get 100,000 signatures so that his wife will let him name their forthcoming child "Spider Pig" (here). By the way, what's the deal these days with children's names down under? A couple in New Zealand, Pat and Sheena Wheaton, were trying to name their baby boy 4Real. After the court turned them down, they chose "Superman." Hmm.
Addendum: Some joker has added "sus arachnia" to the list of the species of pigs on the Wikipedia entry for "pig." Might serve as a good example for our students when things start back up in a few weeks...