闺蜜闺蜜归了我一生死党死党党了我的心
[guī mì guī mì guī le wŏ yī shēng sĭ dăng sĭ dăng dăng le wŏ de xīn]
Translated literally: 'best friend, best friend returned for me forever, best friend ingrained in my heart.' It expresses deep loyalty and unbreakable friendship, highlighting strong emotional bonds.