/ Dictionary / Index P popgun: Meaning and Definition of Find definitions for: pop•gun Pronunciation: (pop'gun"), [key] — n. a child's toy gun from which a pellet is shot by compressed air, producing a loud pop. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: popgun (Thesaurus) pop fly pop-in Related Content Daily Word Quiz: feline Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language