倾覆天下只为你
[qīng fù tiān xià zhĭ wéi nĭ]
Translating to 'Would turn the world upside down just for you,' this conveys extreme dedication and sacrifice ('倾覆天下' refers to overthrowing everything; '只为你' means only for you). The user likely uses this to indicate their willingness to go through anything for someone they deeply care about.