foo A sample name for absolutely
anything,
especially programs and files (especially scratch files).
First on the
standard list of metasyntactic variables used
in syntax examples.
The terms foobar, foo, bar, and
baz 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 purpose 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 in that order, when multiple entities are needed.