The designation attributed to a large brimmed hat, particularly popular in the American West, is quite misleading. The name suggests a volumetric capacity, leading many to believe the hat could hold that amount of liquid. However, its origins are far from a literal measure of liquid volume. The phrase’s genesis involves misinterpretations and linguistic evolution, rather than practical functionality.
Several theories attempt to explain the name. One prominent idea involves the Spanish word “galn,” which itself comes from the old Spanish word galon (braid). Vaqueros in Mexico often adorned their hats with braided cords, and observers may have misheard or misinterpreted “galn” as “gallon.” This mistaken translation, coupled with the hat’s substantial size compared to other headwear, might have solidified the inaccurate name in popular culture. Another theory suggests that the term relates to the hat’s ability to keep the sun and elements off of the wearer, thus “gallon” could be related to how much sun it can hold.