狐狸不成精就是骚的轻
[hú lí bù chéng jīng jiù shì sāo de qīng]
Literally it means ‘if a fox doesn't become a demon, it is still flirtatious’. In metaphorical context it refers to people who are playful or flirtatious by nature regardless of gaining special powers (in folk belief, animals can turn into spirits with special abilities).