from The American Heritage® Dictionary of the English Language, 4th Edition
- n. See cowboy hat.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A large cowboy hat, not holding ten gallons like the name would suggest but usually around three quarts.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a hat with a wide brim and a soft crown; worn by American ranch hands
Perhaps from Spanish galón, braid, galloon (wrapped in rows above the brim), from French galon; see galloon.(American Heritage® Dictionary of the English Language, Fourth Edition)
Not certain. An earlier form without the number, gallon hat, comes by folk etymology from the Spanish galón ('braid'). It may also be a hyperbolic reference to the size of the hat, or a combination of the two. (Wiktionary)