别笑了眼泪都掉了别哭了你妆都花了
[bié xiào le yăn lèi dōu diào le bié kū le nĭ zhuāng dōu huā le]
This nickname uses a line from Chinese romantic songs or expressions, meaning 'Don't laugh anymore as your tears are falling; stop crying because your makeup is smudging'. It reflects someone who is emotionally sensitive and can shift between joy and sorrow easily.