What is griff rule?

There is not much information available about Griff Rule, as it is not a widely recognized or well-known term or concept. It is possible that Griff Rule could be a nickname or code name for a specific rule or principle in a particular context, but without more information, it is difficult to provide specific details. If you have a specific context or more information about Griff Rule, please provide it so that we can offer more detailed assistance.