Adam's ale
Water. A humorous phrase based on the idea that the only thing Adam and Eve had to drink in the Garden of Eden was water. I don't have any beer, but I can offer you some Adam's ale.
Adam's ale
A jocular term for water, based on the strong likelihood that Adam hadn't discovered anything stronger (and they call the Garden of Eden a paradise?). Apparently no fans of alliterations, Scots used to refer to water as “Adam's beer.”