Let's break it down:
* Partie deux means "part two".
* Oui means "yes".
Therefore, "partie deux oui" would literally translate to "part two yes."
This phrase is grammatically incorrect and doesn't convey a clear meaning.
It is possible the phrase is incomplete or a misspelling.
Here are some possible scenarios:
* "Partie deux, oui?" This would mean "Part two, yes?" or "Is it part two?"
* "C'est la partie deux, oui." This would mean "This is part two, yes." or "It is part two, yes."
To better understand the intended meaning, you would need more context.