给我你的身份证送你一张结婚证
[jĭ wŏ nĭ de shēn fèn zhèng sòng nĭ yī zhāng jié hūn zhèng]
'Give me your ID card, and I'll give you a marriage certificate'. A humorous and direct approach often used to express strong affection or intent towards a romantic relationship in a straightforward or exaggerated manner.