AFJ// n. Written-only abbreviation for "April Fool's Joke". Elaborate April Fool's hoaxes are a long-established tradition on Usenet and Internet; see kremvax for an example. In fact, April Fool's Day is the _only_ seasonal holiday consistently marked by customary observances on Internet and other hacker networks.
|a children's mummer's parade, as on the Fourth of July, with prizes for the best costumes.|
|the offspring of a zebra and a donkey.|