Also, "gar nichts". But we would say gar nix for short.
(I know Amis people [1], but don't think it would be relevant here).
[1] https://en.wikipedia.org/wiki/Amis_people
https://en.wiktionary.org/wiki/Ami
> (informal, mildly derogatory) Yank, Yankee, American (native or inhabitant of the USA)