It's possible that:
* It's a misspelling. Double-check the spelling to see if it's a variation of a real word.
* It's a regional dialect word. If you heard it from a specific person or location, it might be a local term.
* It's a made-up word. Sometimes people create words for fun or in specific contexts.
To get a better understanding, please provide more context:
* Where did you hear this word?
* What was the conversation about?
* What language do you think it might be from?
With more information, I might be able to help you find the meaning of "ingunna."