n. 笨人, 傻瓜

[ noun ]
a stupid person; these words are used to express a low opinion of someone's intelligence
<noun.person>

muttonhead \muttonhead\ n.
A stupid or foolish person; a dolt; a numbskull; a blockhead;
-- disparaging and offensive. These words are used to express
a low opinion of someone's intelligence. [disparaging]

Syn: dunce, dunderhead, numskull, blockhead, bonehead,
lunkhead, hammerhead, knucklehead, loggerhead, shithead,
fuckhead.
[WordNet 1.5]