Dummkopf                -(lit. stupid head)

Verpiss Dich            - Piss off


Wichser                 - wanker


Arschgeige              - (lit.) arse violin, arse fiddle


Hosenscheisser          - coward ((small)trouser shitter)


Schweinebacke           - double crossing so and so


Dumpfbacke              - idiot (mainly for female)


Arschkriecher           - person who kisses bosses arse


Schwanz                 - dick

Affenschwanz            - ape-dick

Thanks to Callum !