What is Arschloch?
Arschloch is the German word for Asshole. You could also you Arsch.
Du bist einen Arschloch! VERPISS DICH!
Translation:
You are an Asshole! Fuck off (or fuck you)
See Court
The German word for asshole
DU ARSCHLOCH FICK DICH
Translated: You asshole fuck you