* A misspelling: Perhaps you meant "mangua," which is a Spanish word for "managua" (the capital city of Nicaragua).
* A regional term: It might be a slang term or dialect word in a specific region. To understand its meaning, you would need to know the specific region where you encountered it.
* A made-up word: It's possible the word has been invented or used in a fictional context.
To find out the meaning of "mingua," please provide more context:
* Where did you hear or see the word?
* What was the topic of the conversation or text?
* What language was it used in?
With more information, I might be able to help you understand the meaning.