待我长发及腰你便咔嚓一刀
[dài wŏ zhăng fā jí yāo nĭ biàn kă cā yī dāo]
The username 'Dai Wo Chang Fa Ji Yao Ni Bian Kacha Yi Dao' means 'When my hair reaches my waist, you cut it off.' It describes a bittersweet situation where one is anticipating a future outcome with an element of sorrowful irony.