V.E.R.A. -- Virtual Entity of Relevant Acronyms (September 2014):
FTP Operation Over Big Address Records (RFC 1639, FTP)
The Jargon File (version 4.4.7, 29 Dec 2003):
[very common] Another widely used metasyntactic variable; see foo for
etymology. Probably originally propagated through DECsystem manuals by
Digital Equipment Corporation (DEC) in 1960s and early 1970s; confirmed
sightings there go back to 1972. Hackers do not generally use this to mean
FUBAR in either the slang or jargon sense. See also Fred Foobar. In
RFC1639, ?FOOBAR? was made an abbreviation for ?FTP Operation Over Big
Address Records?, but this was an obvious backronym. It has been
plausibly suggested that ?foobar? spread among early computer engineers
partly because of FUBAR and partly because ?foo bar? parses in electronics
techspeak as an inverted foo signal; if a digital signal is active low (so
a negative or zero-voltage condition represents a "1") then a horizontal
bar is commonly placed over the signal label.
The Free On-line Dictionary of Computing (18 March 2015):
Another common metasyntactic variable; see foo.
Hackers do *not* generally use this to mean FUBAR in either
the slang or jargon sense.
According to a german correspondent, the term was coined
during WW2 by allied troops who could not pronounce the german
word "furchtbar" (horrible, terrible, awful).