What does WWOOF mean?

Formally called “Working Weekends on Organic Farms”, WWOOF came into being in Autumn 1971, in England and when the demand for longer periods occurred, the name was changed to “Willing Workers on Organic Farms”. Since then, in recognition of the world wide nature of the organisation and the confusion caused by the word “work”, WWOOF now stands for “WORLD WIDE OPPORTUNITIES on ORGANIC FARMS”.