* It's a misspelling or a typo: There might be a similar-sounding phrase that you are trying to recall.
* It's a regional slang term: It could be a slang expression used in a specific geographic location or community.
* It's a made-up phrase: It's possible that the phrase is fictional or invented.
To help me understand what you're looking for, please provide more context:
* Where did you hear or see this phrase?
* What was the situation or conversation where it was used?
* What is the language you think it might be from?
With more information, I can help you figure out the meaning of "yo bani."