敲鼓边儿

Traditional (Taiwan): 敲鼓邊兒

qiāogǔbiānr ㄑㄧㄠ ㄍㄨˇ ㄅㄧㄢㄦ

    • to sneer or egg people on from the sidelines

Saying俗语俗語

Idiom惯用语 · Rarely used now

Literally
tap the edge of the drum
Meaning
To sneer or egg people on from the sidelines. Critical.

Sources