陪你从齐耳短发到腰际长发伴你从花样年华到容颜已老
[péi nĭ cóng qí ĕr duăn fā dào yāo jì zhăng fā bàn nĭ cóng huā yàng nián huá dào róng yán yĭ lăo]
This nickname poetically describes a desire to grow old together with someone they love, witnessing all the changes over time, including watching each other’s appearances change from youthful haircuts and young age to aged appearance.