What does tirospare mean in the Dakota language?

"Tirospare" is not a word in the Dakota language. It's possible you're thinking of a similar-sounding word, or there might be a typo.

Could you please clarify or provide more context? For example:

* Where did you hear or see this word?

* What is the context of the word?

* Are you sure you're spelling it correctly?

With more information, I can help you find the correct meaning or a similar word in Dakota.