“鬼才知道这句话是什么意思”用英语怎么说？

God knows!!! （只有上帝才知道，也就是说大家都不知道，鬼才知道）

What's on hell are you talking about? (你到底在说什么？意思是根本听不明白，也就可以理解为鬼才知道）

个人愚见，望采纳！

What does this sentence means that ghost knows it.

God knows what's this mean.

Who hells know the meaning of these word.

Who the hell knows the exactly meaning of this sentence!

hell非常口语化，语气很强烈，一般人在着急上火生气的时候会用这个词。