拉下水

lāxiàshuǐ ㄌㄚ ㄒㄧㄚˋ ㄕㄨㄟˇ

    • to lure someone into wrongdoing
    • to drag someone down with oneself

Character by character

Saying俗语俗語

Idiom惯用语 · In everyday use

Literally
to drag into the water
Meaning
To lure or corrupt someone into doing wrong alongside you. Critical.

Sources