What is the origin of the term 'Gong Farmer'?

The term 'Gong Farmer' originated in medieval England, referring to individuals responsible for cleaning out privies and cesspits. The word 'gong' is derived from the Old English 'gangan,' meaning to go or walk, while 'farmer' indicates a person who works or tends to something. This occupation was essential for sanitation, especially in urban areas during that time.