我有什么不可以你有什么了不起
[wŏ yŏu shén me bù kĕ yĭ nĭ yŏu shén me le bù qĭ]
'What can't I do, and what's so great about you?' conveys defiance, self-assertion or perhaps a reaction against feeling oppressed. The username implies an attitude questioning authority or others' perceived superiority.