有理没理姐说了算
[yŏu lĭ méi lĭ jiĕ shuō le suàn]
This name 'Big Sister Decides Right or Wrong' portrays a dominant, confident person who is used to being the decision-maker and having the final say in things. It suggests a strong-willed, assertive individual who isn't always guided by traditional rules of right and wrong but goes by personal standards.