foobar: n. [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.
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