Arschgeiger.

The word in the subject, "Aschgeiger," is a relatively common German insult. 

It means "ass-violinist."

Yes.  That's right.

Ass...Violinist.

This is what you call someone if you don't like them.  An ass-violinist.  I hope this is one of those sayings that ends up crossing the Atlantic, because when I get back, I sure as don't want to stop calling people ass-violinist.