dun·der·head /ˈdʌndɚ/
笨蛋
Dun·der·head n. A dunce; a numskull; a blockhead.
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dunderhead
n : these words are used to express a low opinion of someone's
intelligence [syn: dunce, numskull, blockhead, bonehead,
lunkhead, hammerhead, knucklehead, loggerhead, muttonhead,
shithead, fuckhead]