I was wondering today what comes after “foo” & “bar”. Now I know the whole list!

foo, bar, baz, qux, quux, corge, grault, garply, waldo, fred, plugh, xyzzy, thud

Unless we were in France. Then it would be:

toto, titi, tata, tutu, truc, bidule, machin, azerty

Or Spain:

fulano, mengano, zutano

Or Britain:

wibble, wobble, wubble, Fred, flob

Full list & discussion is at http://en.wikipedia.org/wiki/Metasyntactic_variable.