Drumfish n. (Zool.) Any fish of the family Sciaenidae, which makes a loud noise by means of its air bladder; called also drum. Note: The common drumfish (Pogonias chromis) is a large species, common south of New Jersey. The southern red drum or red horse (Sciaena ocellata), and the fresh-water drum or croaker (Aplodionotus grunniens), are related species.