sheepshead

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A food fish (Archosargus probatocephalus) of the Atlantic and Gulf coasts of the Americas, having dark vertical markings and a short blunt snout.
• noun A freshwater drum (Aplodinotus grunniens) of North and Central America, valued as a sport fish.

from The Century Dictionary.

• To fish for or catch sheepshead.
• noun A fool; a silly person.
• noun 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.
• noun A sciænoid fish of the fresh waters of the United States, Haplodinotus grunniens. Also called drum, croaker, and thunder-pumper.
• noun (or

from the GNU version of the Collaborative International Dictionary of English.

• noun (Zoöl.) A large and valuable sparoid food fish (Archosargus probatocephalus syn. Diplodus probatocephalus) found on the Atlantic coast of the United States. It often weighs from ten to twelve pounds.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun A fish of the species Archosargus probatocephalus.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun large (up to 20 lbs) food fish of the eastern coast of the United States and Mexico