What is dog Bitcoin called?

Could you please clarify what you mean by "dog Bitcoin"? As far as I'm aware, there's no direct term called "dog Bitcoin" in the cryptocurrency or finance world. Are you perhaps referring to a specific cryptocurrency that has the word "dog" in its name, such as Dogecoin, or are you asking about a nickname or slang term for Bitcoin itself? If you could provide more context or detail, I'd be happy to offer a more accurate answer.