What does Fong you mean?

"Fong you" is not a recognized phrase in any known language. It's likely a misspelling or a humorous, made-up phrase.

To understand what you might be referring to, please provide more context or information. For example:

* Where did you hear this phrase? Was it in a book, movie, conversation, or online?

* What was the context of the phrase? What were people talking about when it was said?

* What is the intended meaning you think it might have?

With more information, I can help you figure out what "Fong you" might mean.