I'm rewatching an old movie series from my country and one of the characters has some fantastic curses.
Dog-headed, unimaginative, impotent porridge farmer. Fleabitten amateurs, perverted shitspreaders.
My favorite I've learned of his is probably "no-good klamphugger" (doesn't have a translation, but its a slur for a poor worksman. Like it just means poor worksman, but it's a slur).