The definition of highfalutin is arrogant or pompous.
(adjective)An example of being highfalutin is when someone offers you to cook you a homemade dinner and you snottily say that you only dine in five star restaurants.
See highfalutin in Webster's New World College Dictionary
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adjective
Origin: altered < ? high-floating, with intrusive vowel in ridicule of oratorical speech
See highfalutin in American Heritage Dictionary 4
or hi·fa·lu·tin
adjectiveOrigin:
Origin: Origin unknown
. Regional Note: H.L. Mencken, in his famous book The American Language, mentions highfalutin as an example of the many native U.S. words coined during the 19th-century period of vigorous growth. Although highfalutin is characteristic of American folk speech, it is not a true regionalism because it has always occurred in all regions of the country, with its use and popularity spurred by its appearance in print. The origin of highfalutin, like that of many folk expressions, is obscure. It has been suggested that the second element, -falutin, comes from the verb flute—hence high-fluting, a comical indictment of people who think too highly of themselves.Learn more about highfalutin