脚踏两只船你划得真好
[jiăo tà liăng zhĭ chuán nĭ huà dé zhēn hăo]
A play on words that means 'You paddle so well with your feet on two boats.' In Chinese, this idiom refers to deceiving both sides in a relationship. It sarcastically comments on someone cheating in relationships but doing it in such a way it seems clever or efficient.