Swamp Water, Dirty Beer, Isar Water

Whatever you want to call it, I just found this recipe at Spirit World and it sounds yummers:

Now, exactly how much Blue Curaçao does one put in the wheat beer? Let’s start with an ounce per 12 ounces of beer. Pour the Blue Curaçao in the bottom of a wheat beer glass. Pour the wheat beer in the glass (pouring a wheat beer is an art that takes some practice, but that’s another future article). Then top the beer with a splash of apple or orange juice. This is an extremely yummy drink. So be careful. Enjoy!

I found it here if you want to read more about it.