I'm not sure what you mean by "plum yinz." "Plum" usually refers to a fruit, and "yinz" is a slang term used in some parts of the United States, particularly in western Pennsylvania, to mean "you all" or "y'all."Without more context, it's difficult to provide a more specific answer. If you could provide more information or clarify your question, I'd be happy to try to help!
