Here are some possibilities for what you might be referring to:
* A misspelling of "MDF veneer": MDF (Medium-density fiberboard) is a type of wood panel often used for furniture and construction. MDF veneer is a thin layer of wood, often a decorative species, glued to the surface of MDF to give it a more aesthetically pleasing appearance.
* A misspelling of "mineral veneer": Mineral veneers are thin sheets of stone, like granite or marble, that are used to cover surfaces for decorative or protective purposes.
* A colloquial term used in a specific context: It's possible that "Mindy veneer" is a term used in a particular community or industry, but it is not widely recognized.
To clarify what you are looking for, please provide more context:
* Where did you encounter this term?
* What was the context in which it was used?
* What are you trying to find out about it?
With more information, I can help you find the correct term or provide a more accurate answer.