Here's a breakdown of the possibilities:
* Misspelling: It could be a misspelling of "right tiny" or "quite puny."
* Slang: It could be a slang term used in a specific community or region, but without more context, it's difficult to say what it means.
* Made-up phrase: It could be a phrase someone invented for a specific purpose.
To understand the meaning, please provide more context. For example:
* Where did you hear this phrase?
* What was the conversation about?
* Who said it?
With more information, I can help you figure out what "right puny" means.