The term “full diddy” does not have a widely recognized meaning in English or popular culture as of my last knowledge update in October 2023. It’s possible that it could be a slang term or expression that has emerged in specific communities or contexts since then.
In some cases, “diddy” can refer to the artist Sean Combs, also known as Puff Daddy or Diddy. However, “full diddy” may not directly relate to him unless used in a specific context.
If you have a particular context or usage in mind, please provide more details, and I’ll do my best to help clarify its meaning!