Source : Free On-Line Dictionary of Computing

JEDR
     
         Synonymous with {IYFEG}.  At one time,
        people in the {Usenet} {newsgroup} {news:rec.humor.funny}
        tended to use "JEDR" instead of {IYFEG} or ""; this
        stemmed from a public attempt to suppress the group once made
        by a loser with initials JEDR after he was offended by an
        ethnic joke posted there.  (The practice was {retcon}ned by
        expanding these initials as "Joke Ethnic/Denomination/Race".)
        After much sound and fury JEDR faded away; this term appears
        to be doing likewise.  JEDR's only permanent effect on the
        net.culture was to discredit "sensitivity" arguments for
        censorship so thoroughly that more recent attempts to raise
        them have met with immediate and near-universal rejection.
     
        [{Jargon File}]
     
        (1994-11-22)