"I am a Mona Kai"
Mona Kai is a Hindi term, most likely a slang or informal word, that doesn't have a direct equivalent in English. It is likely used as a term of endearment, playful insult, or a description of someone's personality. It is difficult to give an exact translation without more context.
To get a better understanding, you need more information about the situation where you heard the phrase. Consider:
* Who said it?
* What was the context?
* What was the tone of voice?
With more context, it would be possible to give you a more accurate and meaningful translation.