待我长发及腰我们私奔可好
[dài wŏ zhăng fā jí yāo wŏ men sī bēn kĕ hăo]
The phrase expresses a romantic desire or dream. It's like saying 'when I grow my hair long enough, let’s elope.' This implies the user's longing and commitment to a love relationship beyond societal norms and conventions.