buckle hat noun1 •Synonym of capotain or pilgrim's hat; commonly associated with the Thanksgiving aesthetic; used to describe a version of the headwear that is now considered to be a historical inaccuracy originating from 19th-century artistic depictions of pilgrims and not an authentic part of their attire.I got the Mr. Pilgrim saltshaker; he stood at attention in his buckle hat with a musket in one arm and a turkey in the other. — 2018 formsbuckle hats