ㄑㄧㄠqiāoㄅㄧㄢbiānㄍㄨˇ

  1. 幫腔助勢官場現形·第一一回》:一等探口氣老爺敲邊鼓。」文明小史·五七》:悄悄牡丹芍藥暗地要好沖天面上敲邊鼓。」打邊鼓」、打獵鼓」、打竄鼓」。

to back sb up, to support sb in an argument, (lit. to beat nearby drum)​