Torbie is short for Tortoiseshell-tabby. The Torbie is a pattern and color that some cats have on their coats. The Torbie pattern and coloring comes about when Tabby stripes are added to the Tortoiseshell pattern. The Tortie pattern is simply the Tortoiseshell pattern and coloring. It seems that most Torbie patterned cats are female, it is the same with Calicos and Torties, which is simply down to genetics. It is important to note that the tortoiseshell tabby is a color pattern and not a specific cat breed.
Breeds That Accept the Pattern
Abyssinians, Bengals, American Shorthair, American Bobtail, British Shorthair, Exotic, Maine Coon, Manx, Persian, Scottish Fold, Turkish Angora