Breadcrumb Home > Dictionary > Index Q quack grass: Meaning and Definition of Find definitions for: quack' grass" Pronunciation: [key] — Inland North and North Midland U.S. a couch grass, Agropyron repens, a pernicious weed in cultivated fields. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: quackgrass (Thesaurus) quackery quacksalver TrendingHere are the facts and trivia that people are buzzing about. Kings of Israel and Judah Current Events This Week: November 2023 Plato Lincoln's Thanksgiving Proclamation Great Novels by Native American Authors Winter Weather Across America ✖ Related Content Daily Word Quiz: redoubtable Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language