The terms foobar (/ˈfuːbɑr/), fubar, or foo, bar, baz and qux (alternatively, quux) and sometimes norf and many others are sometimes used as placeholder names (also referred to as metasyntactic variables) in computer programming or computer-related documentation. They have been used to name entities such as variables, functions, and commands whose exact identity is unimportant and serve only to demonstrate a concept. The words themselves have no meaning in this usage. Foobar is sometimes used alone; foo, bar, and baz are sometimes used, when multiple entities are needed.
The usage in comput...