A person (generally female) who acts like a
cunt in a grand or monstrous manner. Being a
cunt in a big way, using the word
cunt to demean the person the way you would call someone a dick. Calling them a dick or a cunt in this case is such an enormous understatement that the word must be monstricised to encompass said persons cuntiness.
That bitch is a cuntastrophy, she is cuntzilla. Watch out for the cuntzilla at the
bar. My
girlfriend was great then she found someone better and turned into cuntzilla so I would break up with her. Cuntzilla awaits! (nee manager or
female boss)