Genick literally translates to "nape of the neck" or "back of the neck". It's a vivid and somewhat dramatic word that isn't used in everyday conversation as frequently as other body parts.
In the song, the phrase "Es bricht dir das Genick" (It will break your neck) is used idiomatically to mean "it will be your downfall" or "it will ruin you". This strong imagery makes the word memorable and highlights the serious consequences being described in the lyrics.
In "Kodex," Treibhaus paints a picture of a world where honor is gone and rules are ignored. The singer is talking to someone who judges others harshly and unfairly, whose words are just "smoke and mirrors" fueled by their own frustration. The speaker feels sickened by this injustice, seeing it as a system of "sick thoughts" and "false law."
Instead of fighting back with the same negativity, the singer chooses to walk away, saying, "Live your life / But please without me." They hold onto their own beliefs, putting their faith in truth and the idea that "hope dies last." It's a powerful message about maintaining your own moral code even when others have abandoned theirs.