The fact that Wikipedia, almost famous for being so humorless and stuffy, has a Theme Song. It's a parody of "Hotel California". Yes, really.
Many of the April Fool's Day pranks, as seen here.
Back in 2005, an administrator accidentally blocked co-founder Jimbo Wales' account indefinitely, then undid the block with an edit summary of "OOPS!" A month later, another admin blocked him for 1 second as a joke.
The Bad Jokes and Other Deleted Nonsense section was once a relatively popular place to post instances of creative or hilarious article vandalism. Alas, the page was laid to rest in 2007 due to the fact that the page may actually be promoting vandalism, and the page's archives were offloaded to dedicatedsites.
- Is it appropriate to include a picture [on the cow tipping article] of a cow with the caption An unsuspecting potential victim?
- Revert wars, alleged sock-puppetry, and page protection: should the article on feces include this picture of a large human turd? As of early July 2005, the discussion on this issue alone had reached 12,900 words.
- An edit war over what to call Mozart's buttocks! Should the German "Arsch" in the title of a joke composition be translated as "arse" or "ass"?
This section of the "Buttered cat paradox" page. Specifically:
In reality, cats do possess the ability to turn themselves right side up in mid-air if they should fall upside-down, known as the cat righting reflex, which enables them to land on their feet if dropped from sufficient height (about 30cm). A similar ability has not been reported for buttered toast.
Deleted Articles With Freaky Titles from The Other Wiki. Highlights include "Angry donkey", "Attack of the fifty foot Hitler", "The cheeses has eats my one friends", and "List Of Dads Who Make Other Dads Eat Bugs", whose discussion page contained "my dad".
It's been taken down, but The Other Wiki once had an archive of vandalism they found amusing or clever. This Troper's favorite example was when someone altered the page on rapper Chamillionaire to indicate that he had evolved from Charizard.
They still archive hoax articles that were successful, like Gaius Flavius Antoninus (Supposedly helped assassinate Julius Caesar, lasted 8 years),Olimar the Wondercat (fake TV show about a real-life neurologist and his cat, almost lasted 7 years) , and the Bicholim conflict (Fake Indian war that achieved Good Article status and lasted 5 years.)
Wikipedia on the dangers of bee-keeping: "It's worth noting that no amount of protective clothing will make the experience of a facefull of aggressive bees flying up from an opened hive pleasant for any beekeeper".
Wikimedia, who runs Wikipedia and other affiliated websites, has a classy article about behavior called Don't be a dick. At the bottom of the article, it says: The term "dick" in this essay is generally defined as "an abrasive and inconsiderate person" of any gender. Therefore this is an essay about obnoxious behaviour.