have a hunch on that 意思是: 对....有预感。

例句：

I have a hunch on that ,I 'll never see the money again.

我有预感，我的钱拿不回来了。

Hey man ,why did you bet all the money on the horse ?I had a hunch on that .

你为什么把你所有钱全赌那匹马? 我有预感它肯定会赢。

I had worked on this job for ten years and I have a hunch that we workers were getting pooper.

我干这行已10年了。我总有一种预感：我们这些工人是越来越穷。