I was trying to remember this song the other day, the tune is a monotonous slow shantie type Alison. I first heard this song as sung by Fred Wedlock ( The Oldest Swinger in Town) and I still think his is the definitive performance...he also does a wonderful version of "An English Country Garden". I only remember one verse:

What do you do when you want to have a poo,

In an english country Garden?

Pull down your pants and fertilize the ants,

In an english country garden.

hehehe...still makes me laugh.