This post on Attu reminded me of the Australian Piss beer.
"Piss first came to life in 1998 as the house beer at popular Melbourne watering hole, the Great Britain Hotel. Like big volume Aussie brews such as Fosters and XXXX, Piss is a simple lager style beer. Unlike the mass market brews, our Piss is preservative free and made with all natural ingredients".
"A joke started doing the rounds about a year after our first release that we were going to bring out a light beer called Piss Weak. In no time a number of our regular stockists began calling with orders they needed filled. After three or four months it became clear that if we didn't come up with the goods someone else would. So our second label literally materialised around us. Such is the Australian appetite for a beer and a good laugh!"
So visit their website and order your Piss Pak or Slab o'Piss.