"loggerheads" in the noun sense
1. dunce, dunderhead, numskull, blockhead, bonehead, lunkhead, hammerhead, knucklehead, loggerhead, muttonhead, shithead, dumbass, fuckhead
a stupid person these words are used to express a low opinion of someone's intelligence
2. loggerhead, loggerhead turtle, Caretta caretta
very large carnivorous sea turtle wide-ranging in warm open seas
Source: WordNet® (An amazing lexical database of English)
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