A female mule or “Jenny” was more docile and less obstinate than a male or “Jack” and easier to handle so these animals were preferred by the rides owners. The name “Jenny” stuck and has been carried along throughout the decades by seasoned show people to this day as an acronym for the ever present Merry-Go Round.

The term "Jenny" for a merry-go-round is a piece of colorful British fairground slang that dates back to the late 19th century. One prevailing theory is that it was named after the Spinning Jenny, the multi-spindle spinning frame that revolutionized the textile industry during the Industrial Revolution. Early fairground rides were often powered by similar mechanical principles—rotating around a central axis—and the name "Jenny" was colloquially transferred from the factory floor to the amusement park. Another theory suggests it may be an eponymous tribute to a specific early operator or a local corruption of a French term, but the "Spinning Jenny" connection remains the most widely accepted historical explanation. In 2026, you will still hear old-school "showmen" in the UK refer to their carousels as Jennies, particularly those that feature horses or ornate carriages. It serves as a linguistic bridge between the gritty mechanical origins of the Victorian era and the whimsical, modern carousels that continue to entertain families today.