The term 'HARLEY MOTORCYCLE, TO RIDERS' can be summarized by the three-letter acronym 'HOG'. The Harley-Davidson Motor Company has been producing motorcycles since 1903 and is one of the most iconic brands in the world. The term 'HOG' is often used to refer to Harley-Davidson motorcycles and their riders, as it stands for 'Harley Owners Group'. This term is used to describe the strong sense of community and camaraderie that exists among Harley-Davidson riders.