Meaning : A stupid person. These words are used to express a low opinion of someone's intelligence.
Synonyms : blockhead, bonehead, dumbass, dunce, dunderhead, fuckhead, knucklehead, loggerhead, lunkhead, muttonhead, numskull, shithead
Meaning : The striking part of a hammer.
Meaning : Medium-sized live-bearing shark with eyes at either end of a flattened hammer-shaped head. Worldwide in warm waters. Can be dangerous.
Synonyms : hammerhead shark