How do you pronounce shvibzik?

"Shvibzik" is not a word in any common language. It's likely a made-up word or a misspelling.

If you could provide more context, I might be able to help you figure out how to pronounce it. For example:

* Where did you encounter this word? (e.g., a book, a song, a conversation)

* What language is it supposed to be in?

* Is there any other information that might be helpful?

Without more information, it's impossible to provide a pronunciation.