臭蛋恶女
[chòu dàn è nǚ]
It's quite an aggressive nickname, roughly translated as a foul-tempered woman (恶女), while 臭蛋 could be derived from a childish term referring to something very undesirable. It reflects the user doesn't wish to conform to stereotypical gender behavior norms, showing they're confident enough to define their own identity and don't worry what other people think of her behavior.