n. (Zool.) (a) A cyprinoid fish of the Mississippi valley (Pimephales promelas); -- called also black-headed minnow. (b) A labroid food fish of California; the redfish. [ 1913 Webster ]
adj. same as stupid. Opposite of smart. [ informal ] Syn. -- blockheaded, boneheaded, loggerheaded, thick, thickheaded, thick-skulled, wooden-headed. [ WordNet 1.5 +PJC ]