knucklehead
US /ˈnʌk.əl.hed/
UK /ˈnʌk.əl.hed/
名詞
笨蛋, 傻瓜
a foolish or stupid person
範例:
•
Don't be such a knucklehead and pay attention!
別當個笨蛋，注意聽！
•
My little brother can be a real knucklehead sometimes.
我弟弟有時真是個笨蛋。