你曾让我滚现在我让你爬
[nĭ céng ràng wŏ gŭn xiàn zài wŏ ràng nĭ pá]
It translates to 'You told me to leave in the past, now I make you crawl'. It shows the person has gone from a low point in the relationship to having the upper hand now, symbolizing the change in dynamic and gaining advantage.