待我长发及腰勒死贱人可好待我指甲变长掐你情敌可好
[dài wŏ zhăng fā jí yāo lè sĭ jiàn rén kĕ hăo dài wŏ zhĭ jiă biàn zhăng qiā nĭ qíng dí kĕ hăo]
This username reflects frustration or anger towards someone (often in romantic rival situations). Literally asking: 'When my hair grows long enough to strangle someone and my nails are sharp enough, can I deal with rivals?'. It's quite dramatic and negative.