cretin

Why did you do that, you cretin?

你为什么这样做，你这个傻瓜？

牛津词典

Why else would I have chosen such a disreputable looking cretin?

为什么我选中的其他人象个白痴?

电影对白

Why did you do that, you cretin?

你为什么做那事, 你这个笨蛋?

期刊摘选

Why did you do that, you cretin?

你为什么这样做，你这个傻瓜？

《牛津高阶英汉双解词典》