- Warmduscher, Weichei, Lump - wuss
- Knalltüte - literally "bang bag" (somebody who's not to be taken seriously)
- Trottel, Blödel, Dödel - sap (the last one actually means "dick" as well)
- Pisskopf - "piss head"
- Schwachkopf - imbecile
- Arschgeige - "arse violin" ... thanks to RalphyK for reminding me :)
- Arschgesicht - "butt face"
Those were in rough
order of increasing
offensiveness. A guy from
South Tyrol (native speakers of both
Italian and German) once told me that
German is rather boring compared to the colorful possibilities of
Cussing in Italian. But still, every few weeks I've got a new
swearword of the month :)