Breadcrumb Home > Dictionary > Index C crabby: Meaning and Definition of Find definitions for: crab•by Pronunciation: (krab'ē), [key] — -bi•er, -bi•est. grouchy; ill-natured; irritable; peevish. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: crabby (Thesaurus) crabbing crab cactus ✖ Related Content Daily Word Quiz: evanescent Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language