n. A fool; a silly person.n. A sparoid fish, Archosargus or Diplodus probatocephalus (formerly known as Sargus ovis), abundant on the Atlantic coast of the United States, and highly esteemed as a food-fish. It is a stout- and very deep-bodied fish, with a steep frontal profile, of a grayish color with about eight vertical black bands, and the fins mostly dark. It attains a length of 30 inches, though usually found of a smaller size.n. A sciænoid fish of the fresh waters of the United States, Haplodinotus grunniens. Also called drum, croaker, and thunder-pumper.n. (orTo fish for or catch sheepshead.