a stick to beat someone with

US /ə stɪk tə biːt ˈsʌm.wʌn wɪθ/
UK /ə stɪk tə biːt ˈsʌm.wʌn wɪθ/
"a stick to beat someone with" picture
1.

누군가를 공격할 빌미, 비난의 근거

a piece of information or an argument that can be used to criticize or harm someone

:
His past mistakes became a stick to beat him with during the election campaign.
그의 과거 실수는 선거 운동 기간 동안 그를 공격하는 빌미가 되었다.
Don't give them a stick to beat you with by admitting your weaknesses.
약점을 인정해서 그들에게 당신을 공격할 빌미를 주지 마세요.