YMMV / Chuck Norris Facts
Always Someone Better: Usually Chuck is this but, there are a few where he comes off second best:
Why does Chuck Norris have a beard? Because his chin was less manly than Bruce Campbell's.
Also, be darn sure that if a "Chuck Norris vs. X" conversation goes on long enough...someone will bring up Bruce Lee defeating him. But then, Bruce was Chuck's mentor in the martial arts.
Adaptation Displacement: Many Chuck Norris facts are recycled Vin Diesel facts, which have fallen out of vogue.
Discredited Meme/ Hype Backlash: Some people are really tired of hearing these jokes. Some have also hype-backlashed against Norris himself after learning of his right-wing views.
Memetic Mutation: Duh.
Seinfeld Is Unfunny: Before the Hype Backlash, Chuck Norris Facts was one of the funniest websites. That was around 2003-04 or so. Years later, you would be lucky if you use one of these facts and actually get a chuckle from anyone.