What is the meaning of shengdana in English?

"Shengdana" is not a recognized English word. It's possible you are referring to a word from a different language, or it may be a misspelling.

To help me understand what you mean, could you provide more context?

For example:

* Where did you hear this word?

* What was the context of the conversation?

* What language might it be from?

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