待我头发及腰之时那你嫁给我可好呀
[dài wŏ tóu fā jí yāo zhī shí nèi nĭ jià jĭ wŏ kĕ hăo yā]
'When my hair reaches my waist, will you marry me?' This represents waiting for the right moment for something meaningful such as marriage or a commitment after having enough patience and maturity.