闭上你的嘴别挑你的眉
[bì shàng nĭ de zuĭ bié tiăo nĭ de méi]
Literally translated, this says 'Shut your mouth and don't raise your eyebrows'. Clearly, this username exudes impatience, frustration, or annoyance directed at another person's behavior, showing directness and no-nonsense attitude.