squirrelfish n 1: similar to sea bream; small spiny-finned fish found in bays along the southeastern coast of the United States [syn: {pinfish}, {sailor's-choice}, {Lagodon rhomboides}] 2: very small brightly colored (especially red) nocturnal fishes of shallow waters of tropical reefs; they make sounds like a squirrel's bark [also: {squirrelfishes} (pl)]