笨小蛋傻小瓜
[bèn xiăo dàn shă xiăo guā]
A playful and self-deprecating name. '笨小蛋' (ben xiao dan) literally means a foolish little dumpling or silly person while '傻小瓜' (sha xiaogua) also implies a naively clueless person. It expresses the idea that the user is innocent, silly, and humble.