菇凉已老少年娶我可好
[gū liáng yĭ lăo shăo nián qŭ wŏ kĕ hăo]
This nickname is a playful take on an old Chinese saying or concept. 'Gu Liang' (菇凉) means 'young girl,' and the phrase expresses humor and irony by suggesting that though the girl might be getting older, she's teasingly asking a young boy if he'd still marry her. It’s light-hearted and somewhat sarcastic.