树靶子

Traditional (Taiwan): 樹靶子

shùbǎzi ㄕㄨˋ ㄅㄚˇ ˙ㄗ

    • to pick someone or something as a target of criticism

Character by character

Saying俗语俗語

Idiom惯用语 · Rarely used now

Literally
set up a target
Meaning
To pick someone or something as the object of criticism.

Sources