saphead

Don't be such a saphead; check the map before you drive.

用法提示：saphead 在此是名词，意为“笨蛋”，指缺乏判断力的人。

He felt like a saphead for leaving his keys in the locked car.

用法提示：saphead 为名词，作表语，表示“蠢材”。

Only a saphead would believe that obvious trick.

用法提示：saphead 在句中作主语补足语（名词），指“傻瓜”。