屠毒筆墨 [－－笔－]

Jyutping tou4 duk6 bat1 mak6
Pinyin tú dú bǐ mò

Definitions (CC-CEDICT)

poisonous writing
disparaging writing
calumny

Definitions (Kaifangcidian)

（沒有對應漢語詞彙）