He told the salesman to naff off naff off.

他让那上门兜搅生意的人离开.

The book I read last week was nothing short of being naff.

我上星期看的那本书简直是无聊透顶了.

I recently bought a set of wireless headphones, and thought they looked cool … but the sound quality was naff and I looked like a Martian.

我最近买了无线耳机，觉得它们看起来很酷…但音质很破，而且我戴上它们看起来像一个火星人。（H：怎么会呢？