Possible explanations:
* Misspelling: It could be a misspelling of a word like "Karmenatjie", which might be a proper noun or a name.
* Dialect: It might be a word from a specific regional dialect or slang, particularly from South Africa.
* Made-up word: It's possible the word is completely made up.
To understand the meaning, you would need more context.
Please provide more information, such as:
* Where did you hear the word?
* What was the context of the conversation?
* What other words were used around it?
With more information, it might be possible to determine the intended meaning.