Arschgeweih. The word is Ass antlers in German. Tmyk

Really? Dumper sticker was right there...

Sometimes calling it a tramp stamp is more fitting. Here's an example my wife and I had done last summer

And vajazzling applied to the buttocks could be called bumbling.

I think my favorite was a girl I hooked up with years ago had the holy Trinity / Celtic Knot on her lower back.