闺蜜一辈子在一起闺蜜一辈子不分离
[guī mì yī bèi zi zài yī qĭ guī mì yī bèi zi bù fēn lí]
This nickname expresses a deep friendship between two girls who are close friends (commonly referred to as 'best girlfriends' or 'bff'). The phrase means their bond is unbreakable and lasts forever. It emphasizes the closeness and longevity of their relationship.