我们可以用短语 whatever floats your boat 来形容“想做什么就做什么，随意”。

例句

It's your birthday. We can go to the theatre or have a meal in a posh restaurant. Whatever floats your boat.

Peter is a ladies' man but if you still want to go out with him, fine. Whatever floats your boat!

请注意

表达 to push the boat out 通常用于庆祝活动的语境中，意思是比以往多花钱热闹一下。

例句

We really pushed the boat out and held Mary's farewell party in one of the most expensive restaurants in town.