* It's a misspelling: There might be a similar word with a different spelling that you're thinking of.
* It's a regional term: It could be a slang word or dialectal term specific to a particular region or community.
* It's a made-up word: It might be a word created for a specific context, such as a fictional story or a game.
To get a more accurate answer, please provide more context:
* Where did you encounter this word?
* What was the situation?
* Do you have any other information about the word, such as its origin or intended meaning?
With more information, I might be able to help you find the definition of "nkweniss."