What kind of G dog?

Please provide more context! "G dog" could refer to several things.

For example, are you asking about:

* A specific breed of dog? There are many breeds that start with the letter "G", like Golden Retriever, German Shepherd, Great Dane, etc.

* A nickname for a dog? Maybe you're thinking of a specific dog you know, and "G dog" is a nickname they have.

* A slang term? "G dog" might be a slang term in a specific community.

Please give me more information so I can help you figure out what kind of "G dog" you're looking for!