You have a fat chance.

你机会渺茫.

I have a fat chance to get the job.

我得到那份工作机会渺茫.

A fat chance he has of winning the title!

他夺得冠军的希望极渺茫!

The batty a fat chance to marry the slim girl.

那个怪胖子几乎不可能娶到这个苗条女孩.

A slim chance and a fat chance can be the same.

机会不管是瘦还是肥都是一个意思.

The batty fatty has a fat chance to marry the slim girl.

那个怪胖子几乎不可能娶到这个苗条女孩。

How can a slim chance(13) and a fat chance(14) be the same, while a wise man(15) and wiseguy(16) are opposites?

胖瘦截然相反，可后面跟着chance就都变成“机会渺茫”了；聪明人(wiseman)改一个词，就沦落为自作聪明的人(wiseguy)。

The gym is always trying to get more of your money, so there's a fat chance of that happening.

对了，你说如果你想用的运动器材都被别人占了，健身房会不会退你一些钱？