/ Dictionary / Index P plunker: Meaning and Definition of Find definitions for: plunk•er Pronunciation: (plung'kur), [key] — n. a person or thing that plunks. a casting lure that makes a plunking sound upon hitting the surface of the water. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: plunker (Thesaurus) plunk pluperfect Related Content Daily Word Quiz: tactful Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language