唱双簧

唱双簧

Literally means:

play a duet

Actually means:

"双簧 Double Performance" is an art form played by two persons, one acting in the front and the other hiding behind to talk or sing according to the movement of the first person. The combination result appears to the audience as if there were only one person doing all these.

This phrase figuratively means two persons collaborate with each other, either being exposed in the open together, or with one in the open and one in the dark. It often describes that two persons join together to cheat others or do something evil. Derogatory.

双簧，一种由两个人合作表演的曲艺。一个在前面表演动作，另一个藏在后面根据动作或说或唱，让观众看起来好像动作和说唱都由前面的那个人单独完成的。

唱双簧，比喻两个人同时露面，或者一个在明处，一个在暗处，彼此配合行动。多用于说明两个人联合起来骗人或做坏事。具有贬义色彩。