"笨蛋"的英文有：
idiot;；ass；fool;；stupid fellow （骂人的话）。
其它表示此类的英语单词dumb, 愚笨的；dumbell, 笨蛋，蠢货；dumb cluck, 愚人；dumb duck, 笨蛋；dunce, 愚蠢的人，劣等生；simpleton, 愚人；boob, 笨蛋；bonehead, 笨蛋(=boner)；blockhead,蠢货；jerk,愚笨的人(指未经世故、行动古怪的人)；knucklehead,笨拙的人。
1、idiot例句：
1）I knew I'd been an idiotto stay there.
我知道我呆在这里很蠢。
2）You're an idiot!
你是个白痴！
3）Idiot!You could have told me!
蠢货！你本应该告诉我！
2、ass例句：
1）To just hand it over to your dumb ass?
仅仅是为了把它给你这个笨蛋吗？
2）I think that you are a real dumb ass sometimes.
我觉得你有时真的是个笨蛋。
3、fool例句
Bai Min father and son tried to pretend not to recognize people, still did not get Xu Enshu trust,she thinks she is Bai Min pegatron as a fool fool.
白民硕父子极力假装不知情的样子，还是没有得到许恩淑的信任，她认为自己被白民硕当成了傻瓜笨蛋。
4、stupid fellow例句
The stupid fellow never realised that he was a mere cat's paw in the hands of his enemy.
这个笨蛋从未意识到他只不过是掌握在敌人手中的一个工具罢了。
5、slob例句
The lazy slob has no motivation or intention of ever getting a real job.
懒惰的笨蛋没有获得一份真正工作的动机或打算。
Rainbow蓓
