from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Pretentiously self-important; pompous.
- adj. Given to frivolity or silliness.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Pompous, self-important and snobbish.
from the GNU version of the Collaborative International Dictionary of English
- adj. Thoughtless; giddy; flighty; also, haughty; patronizing; ; used also as an exclamation, denoting surprise or disapprobation, with some degree of contempt.
from The Century Dictionary and Cyclopedia
- An exclamation denoting surprise or disapprobation, with some degree of contempt: equivalent to pshaw.
- Elated; giddy; flighty; petulant; huffy: as, he is in hoity-toity spirits.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. affectedly genteel
From reduplication of dialectal hoit, to romp; perhaps akin to hoyden.(American Heritage® Dictionary of the English Language, Fourth Edition)
From the archaic verb hoit ("to play the fool; to behave thoughtlessly and frivolously") (Wiktionary)