/ Dictionary / Index B blow job: Meaning and Definition of Find definitions for: blow' job" Pronunciation: [key] — Slang (vulgar) Slang (vulgar). an act or instance of fellatio. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: blowjob (Thesaurus) blowiron blow mold Related Content Daily Word Quiz: illegible Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language