backronymn. [portmanteau of back + acronym] A word interpreted as an acronym that was not originally so intended. This is a special case of what linguists call `back formation'. Examples are given under BASIC, recursive acronym (Cygnus), Acme, and mung. Discovering backronyms is a common form of wordplay among hackers. Compare retcon.
|the offspring of a zebra and a donkey.|
|a children's mummer's parade, as on the Fourth of July, with prizes for the best costumes.|