找墊背的

Simplified: 找垫背的

zhǎodiànbèide ㄓㄠˇ ㄉㄧㄢˋ ㄅㄟˋ ˙ㄉㄜ

    • to look for a scapegoat to share the blame or punishment

Character by character

Saying俗语俗語

Idiom惯用语 · Widely known

Literally
look for someone to put at one's back
Meaning
To look for an innocent person to share or take the blame or punishment, so as to lessen one's own. Critical; close to 'find a scapegoat'.

Sources