/ Dictionary / Index B boomer: Meaning and Definition of Find definitions for: boom•er Pronunciation: (b'mur), [key] — n. a person or thing that booms. a person who settles in areas or towns that are booming. See a wandering or migratory worker; hobo. a period of sudden and decisive economic growth: July was a boomer for the retail trade. a person, fad, etc., that enjoys a brief popularity or financial success: A new group of boomers made this season's hit record. an enthusiastic supporter; booster: The boomers tell us our town can double its size. a fully grown male kangaroo, esp. a large one. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: boomer (Thesaurus) boom box boomerang Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language