Bitch to the power of cunt
When someone, usually a girl, is so despicable as a human being, that they cannot just be considered as "bitch" or a "cunt;" they must be a bitch to the exponent of "cunt" to describe how incredibly awful said person is.
Boss: I cut your wages again, and I will also expect you to come in on Saturdays. You had done nothing wrong, I just needed to feel better about myself.
Employee: You are a total bitch to the power of cunt.
Employee: You are a total bitch to the power of cunt.