沉鱼落雁非比你闭月羞花不胜她
[chén yú luò yàn fēi bĭ nĭ bì yuè xiū huā bù shèng tā]
'Chén Yú Luò Yàn Fēi Bǐ Nǐ Bì Yuè Xiū Huā Bù Shèng Tā' comes from the ancient description about beauties: 'sink fish and drop wild goose by beauty; shut moon and put flowers to shame', used for depicting very beautiful ladies, indicating the user is praising or expressing their own beauty.