为你写诗喂你些屎
[wéi nĭ xiĕ shī wèi nĭ xiē shĭ]
The meaning is 'Writing poems for you, feeding you some shit'. On one side, the user promises beautiful things such as poetry but at the same time, they also warn that there might be less favorable aspects or even negative sides within the relationship, implying life's mix of ups and downs, joys and miseries