a bitch
Examples
When a man gives his opinion he's a man. When a woman gives her opinion she's a bitch.
Once a bitch always a bitch, what I say.
I'm the most cold-hearted son of a bitch you'll ever meet.
A man who gets, a bitch who lets.
Life's a bitch and then you marry one.
It is all one whether you are bit by a dog or a bitch.