What country natinal dish is oil-dung?

There is no country or national dish called "oil-dung." It seems like you might be misunderstanding or misspelling a dish.

Could you please clarify what you mean? Perhaps you meant to ask about:

* A different dish: Can you describe the dish you're thinking of?

* A different spelling: Did you make a typo?

* A specific country: Do you have a specific country in mind?

I'm here to help! Let me know if you can provide more information.