/ Dictionary / Index G gasbag: Meaning and Definition of Find definitions for: gas•bag Pronunciation: (gas'bag"), [key] — n. a bag for holding gas, as in a balloon or dirigible. a talkative, boastful person; windbag. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: gasbag (Thesaurus) gas bacillus gas black Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language