* It's a typo or a misspelling. Perhaps you meant "piddly," which refers to something small, insignificant, or petty.
* It's a slang term or phrase. Without more context, it's difficult to know what it might refer to. It could be a regional slang term or a phrase used within a specific group of people.
* It's a specific product or brand. Without more information, it's impossible to know what you're referring to.
To understand what you're asking, please provide more context:
* What was the context where you encountered this term?
* What was the topic of discussion?
* Can you provide an example sentence or phrase where this term was used?
With more information, I can help you figure out what "p ditty" might refer to.