摇笔鼓舌yáo bǐ gǔ shé

flourish a quill or wag a reproving tongue
❍ 然而当这时候，偏又有人～，向着小民提出严重的质问道： “国民将何以自处” 呢，…… (《鲁迅选集》 Ⅲ—204) At such a time,however,there is always someone to flourish a quill or wag a reproving tongue. Then the common people are catechized severely: “What are you going to do now?”