The term "ten-gallon hat" is a bit of a misnomer and doesn't refer to the hat's capacity. There are a few theories about the origin of this name:

• One popular theory is that the term "ten-gallon" comes from a misunderstanding or anglicization of the Spanish word "galón," which means "braid." The hats were often decorated with braided bands, and a "ten-galón" hat would be one with a wide decorative band.

• Another theory is that the term "ten-gallon" was used as a form of hyperbole to emphasize the hat's large size. It was a way to make the hat sound more impressive.

• Some believe that the term was coined or popularized by advertising campaigns in the early 20th century to evoke images of the rugged cowboy lifestyle and to sell more hats.

A ten-gallon hat does not actually hold ten gallons of liquid. In fact, a ten-gallon hat holds less than a gallon of water. The name has stuck, however, and it is now synonymous with the large, wide-brimmed cowboy hats associated with the American West.