put the cat among the pigeons
搞得一团糟，使局势变得混乱或导致麻烦
口语·表达制造混乱
英文释义
To cause a disturbance or create a chaotic situation by introducing something unexpected or controversial.
例句
His announcement put the cat among the pigeons at the meeting.
典故来源
源自19世纪英国，猫闯入鸽群引起混乱，比喻引入争议性话题。