"I think thereís an actual law that says that any media that runs long enough has to do a Willy Wonka parody. And then a Star Wars one. Let it never be said that Iím above treading where others have trod before often and much better."Things that have been referenced, parodied, satirized, spoofed, and otherwise homage-inized so much that they have evolved into tropes of their own. Sometimes the source has been lost to modern audiences, and only the homages remain. Compare Stock Jokes, Other Stock Phrases.