Related:

• hud n. 1. Yet another metasyntactic variable (see foo).
  It is reported that at CMU from the mid-1970s the canonical series of these was `foo', `bar', `thud', `blat'....
• metasyntactic variable n. A name used in examples and understood to stand for whatever thing is under discussion, or any random member of a class of things under discussion.
  The word foo is the canonical example. To avoid confusion, hackers never (well, hardly ever) use `foo' or other words like it as permanent names for anything....
• gorp: /gorp/ [CMU: perhaps from the canonical hiker's food, Good Old Raisins and Peanuts] Another {metasyntactic variable}, like {foo} and {bar}.
  -- The AI Hackers Dictionary...
• hat: n. Common (spoken) name for the circumflex (`^', ASCII 1011110) character.
  See {ASCII} for other synonyms. -- The AI Hackers Dictionary...
• oke: n. Common name for the slant (`/', ASCII 0101111) character.
  See {ASCII} for other synonyms. -- The AI Hackers Dictionary...
• lash: n. Common name for the slant (`/', ASCII 0101111) character.
  See {ASCII} for other synonyms. -- The AI Hackers Dictionary...
• udel: n. Common (spoken) name for the at-sign (`@', ASCII 1000000) character.
  See {ASCII} for other synonyms. -- The AI Hackers Dictionary...
• amper: n. Common abbreviation for the name of the ampersand (`&', ASCII 0100110) character.
  See {{ASCII}} for other synonyms. -- The AI Hackers Dictionary...
• qux: /kwuhks/ The fourth of the standard {metasyntactic variable}, after {baz} and before the quu(u.
  ..)x series. See {foo}, {bar}, {baz}, {quux}. This appears to be a recent mutation from {quux}, and many versions (especially older versions) of the standard series just run {foo}, {bar}, {baz}, {quux}, ....