* A misspelling: Perhaps you meant "Tiffany," which is a popular brand name known for its jewelry and home goods.
* A regional dialect word: Some words are specific to certain regions or communities. If you heard it somewhere, maybe it's a local slang term.
* A made-up word: People create new words all the time. Maybe the person using "piffany" invented it for a specific purpose.
To clarify what you mean, can you provide more context? For example:
* Where did you hear the word "piffany"?
* What was the situation when you heard it?
* What did the person who said it mean?
With more information, we can figure out what "piffany" really means!