笨蛋姑娘傻瓜公子
[bèn dàn gū niáng shă guā gōng zi]
This name is used by a person who calls herself a foolish girl, addressing another person as a silly boy. It's often playful self-deprecation and may also carry the implication that both the user and an important other are rather innocent and naive, which usually means a lighthearted romantic relationship without much thought about the reality.