Next time you want someone to shut up simply say, "Jetzt aber, still." Christine Habegger Purves, writing about some Swiss dialect phrases in the recent Swiss Community Historical Society newsletter says that means: "Now be quiet," or more rudely, "shut up."
There's more and here it comes:
Langi zeiti. A long time.
Es macht mir nuet aus. It makes no difference to me.
Vas gish vas hest. What you get is what you have.
Uf zwei bei wie a 'n' a haube hung. With two legs just like half a dog.