V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

FUBAR
       Failed UniBus Address Register (VAX)


V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

FUBAR
       Fouled / Fucked Up Beyond All Recognition / Repair (slang,
Usenet, IRC)


The Jargon File (version 4.4.7, 29 Dec 2003):

FUBAR
 n.

    The Failed UniBus Address Register in a VAX. A good example of how jargon
    can occasionally be snuck past the suits; see foobar, and foo for a
    fuller etymology.


The Free On-line Dictionary of Computing (30 December 2018):

FUBAR

   1. (WWII military slang) Fucked up beyond all
   recognition (or repair).

   See foobar.

   2.  The Failed UniBus Address Register in a
   VAX.  A good example of how jargon can occasionally be snuck
   past the suits.

   Larry Robinson  reports the following
   nonstandard use for FUBAR:

   One day somebody got mad at the card reader (or card eater
   that day) on our Univac 3200.  He taped a sign, "This thing
   is FUBAR", on the metal weight that sits on the stack of
   unread cards.  The sign stayed there for over a year.  One
   day, somebody said, "Don't forget to put the fubar on top of
   the stack".  It stuck!  We called that weight the fubar until
   they took away the machine.  The replacement card reader had
   two spring loaded card clamps, one for the feed and one for
   the return, and we called THOSE fubars until we dumped punch
   cards.

   Incidently, the way he taped the sign on the weight made up
   for the lack of a little nylon piece that was missing from it,
   and fixed the card reader.  That's why the sign stayed there.

   [Jargon File]

   (1997-03-18)