Question: why are they called 10 gallon hats?
Answer: A “10 galón” sombrero was a hat with a large enough crown that it could hold 10 hatbands, but American cowboys may have anglicized the word to “gallon” and started referring to their own sombrero-inspired headgear as “10-gallon hats.” Yet another linguistic theory argues that the name is a corruption of the Spanish ...