What is the origin of expression Zha Zhu?

"Zha Zhu" is not a commonly known expression or phrase in English or Chinese. It's possible you've misheard or misspelled it.

To help me understand what you're looking for, please provide more context:

* Where did you hear or see this expression? (e.g., a movie, a book, a conversation)

* What was the context of the expression? (e.g., what was being discussed or talked about?)

With more information, I can help you figure out the meaning and origin of the expression.