装逼卖萌无所不能撒娇发嗲无所不会
[zhuāng bī mài méng wú suŏ bù néng sā jiāo fā diă wú suŏ bù huì]
This username reflects a playful and somewhat mischievous personality. It implies the person is skilled at being arrogant or childish (to act in an endearing way to get attention or sympathy) both in public, essentially saying they can act however it takes to draw attention to themselves.