How do you pronounce boppli?

There's no word "boppli" in any major language that I'm aware of. It's possible it's a made-up word or a name.

If you could provide more context, like:

* Where did you encounter this word? (A book, a movie, a conversation, etc.)

* What language is it supposed to be in?

* Is there any spelling variation?

With more information, I might be able to help you figure out how to pronounce it.