stupid ass 蠢驴;笨驴;傻了吧唧;傻冒

【例句】

You stupid ass! How could you do a thing like that?
你这头蠢驴！怎么会干出那种事儿来？

Stupid ass should have stopped, shown his credentials and been on his way.
这个傻冒应该停车并且出示他的证件，这样就啥事都没了。