1. A word used in electronic mail and news messages to tag utterances as surreAlist mind-play or humour, especially in connection with Discordianism and elaborate conspiracy theories. "I heard that David Koresh is sharing an apartment in Argentina with Hitler. (Fnord.)" "Where can I fnord get the Principia Discordia from?" 2. A metasyntactic variable, commonly used by hackers with ties to Discordianism or the {Church of the SubGenius}. The word "fnord" was invented in the "Illuminatus!" trilogy by Robert Shea and Robert Anton Wilson. [Jargon File] (1995-02-28)