抬头挺胸菇凉我就是女王
[tái tóu tĭng xiōng gū liáng wŏ jiù shì nǚ wáng]
This nickname is quite self-confident, meaning 'Hold my head up high, look what a girl I am like a queen.' The owner probably believes she should have confidence in herself, like how queens carry their elegance and grace.