Germans might come off as reserved and quiet at first, but they sure do know how to swear and use dirty language! Not all of it is meant in a negative way though. Here are some examples you are likely to come across when spending time with Germans (warning: German dirty language is very fixated on butts and excrements).
1. In German, if something suits really well, it “fits like an ass on the bucket” (Wie Arsch auf Eimer).