待我长发及腰半夜出去吓你
[dài wŏ zhăng fā jí yāo bàn yè chū qù hè nĭ]
'When my hair grows down to my waist, I’ll scare you late at night.' This playful yet mysterious name suggests a girl promising some sort of fun prank or encounter, usually among close friends where both parties understand the context is teasing not serious.