a stupid, unpleasant or rough person, especially a man Topics Personal qualitiesc2傻瓜,蠢材,笨蛋(尤指男人) Word Originearly 17th cent.: variant of obsolete auf, from Old Norse álfr ‘elf’. The original meaning was ‘elf's child, changeling’, later ‘idiot child’ and ‘halfwit’, generalized in the current sense.