你是撒逼蹦蹦跳跳活蹦乱跳
[nĭ shì sā bī bèng bèng tiào tiào huó bèng luàn tiào]
This username translates to a colloquial, somewhat crude expression that refers to someone as being hyperactive or overly energetic, akin to saying 'You're all over the place.' It’s a casual and humorous way to depict lively but sometimes annoying behavior.