好姑凉貌美如花好骚年知书达理
[hăo gū liáng mào mĕi rú huā hăo sāo nián zhī shū dá lĭ]
This nickname is a juxtaposition of the praises for a young woman and man. 'Good girl as beautiful as a flower' means a virtuous, beautiful girl; and the latter part 'good lad knows etiquette' represents an upright youth who understands the rules of propriety. It's often used to express admiration or flattery for the qualities of oneself or others.