What does hawaiian word bumbai mean?

There is no Hawaiian word "bumbai". It is possible that you are thinking of a word from another language or that there is a misunderstanding.

Could you please provide more context or clarify what you are looking for?

For example:

* Where did you hear this word?

* What was the context?

* What language do you think it might be from?

With more information, I can help you find the correct meaning.