/ Dictionary / Index R rocker: Meaning and Definition of Find definitions for: rock•er Pronunciation: (rok'ur), [key] — n. Also calledone of the curved pieces on which a cradle or a rocking chair rocks. See a rock-'n'-roll song: She sang a ballad and followed that with two of her well-known rockers. any of various devices that operate with a rocking motion. a small steel plate with one curved and toothed edge for roughening a copperplate to make a mezzotint. cradle (def. 13). an ice skate that has a curved blade. a performer or fan of rock music. insane; crazy: You're off your rocker if you think I'm going to climb that mountain. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: rocker (Thesaurus) rock elm rocker arm Related Content Daily Word Quiz: cautious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language