The phrase comes from the German sentence meaning my name is not Achim, with nich and heiss kept in their colloquial, misspelled form from the original upload title. No confirmed film, show or creator source is attached to the clip, so it spread simply as a standalone soundboard and chat reaction. German-speaking users first shared it for name jokes, then it crossed over because the annoyed tone translates even without the words. It is now reused as a short, deadpan correction in memes, edits and streams.