Definition
something that is used as a means to criticize, influence, or cause difficulty for someone or something, especially someone or something disliked or disapproved of.
攻讨、批评的把柄
He often uses my past mistakes as a stick to beat me with.
他经常拿我过去的错误来打击我。
The media often uses politicians' slip-ups as a stick to beat them with.
媒体经常利用政治家的失误来攻击他们。
Competitors will use the company's weaknesses as a stick to beat them with.
竞争对手会利用公司的弱点来打击他们。