This is why we have [foo, bar, baz, quux] and example.com though: https://www.iana.org/domains/reserved

God, I hate these, especially in API documentation. Come up with a simple example of how I might want to use your API. The relationship between fruit and bananas is much more clear than between foos and bazzes.

I recently had to expand my list and came up with:

    foo bar baz buz qux pip pop tut rof art uff dex dom zed

Except there's already foo, bar, baz, qux, quux, garply, waldo, fred, plugh, xyzzy, thud.

http://www.catb.org/~esr/jargon/html/F/foo.html

Same here except I go much more vulgar.

It's such a hard habit to break. Also, if I can name a character in a videogame, it's almost always Dickbutt.