/ Dictionary / Index H hash house: Meaning and Definition of Find definitions for: hash' house" Pronunciation: [key] — Slang. Slang. an inexpensive restaurant, diner, or the like, that serves a limited number of short-order dishes: We stopped for lunch at a roadside hash house. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. hashhead Hashimite Related Content Daily Word Quiz: philtrum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language