胭脂旧
[yān zhī jiù]
'Yan Zhi Jiu', where 'Yan Zhi' often refers to the red lipstick that symbolizes a lady, especially a woman in traditional Chinese costume. And 'Jiu (旧)' represents oldness, implying something nostalgic and vintage. The entire nickname may be an expression about someone who appreciates classical beauty or has some lingering feelings in the past life.