Ratchet Ass Hoe is a term used to describe a bitch who lacks class. They typically have rotten teeth and two toned hair. They tend to be promiscuous and are constantly craving attention.
Sarah: Look at my hair, isn't it cute, the top is blond and the underneath is black?!
Adam: Actually, your two toned nappy hair makes you look like a Ratchet Ass Hoe.