劳资嫁不成你嫁你兄弟可好
[láo zī jià bù chéng nĭ jià nĭ xiōng dì kĕ hăo]
Translated literally this means, 'if I can’t marry you, would you mind marrying my brother?' which conveys frustration over unsuccessful attempts at romance with someone and resorts to making humorous threats towards them.