洗脑子

Traditional (Taiwan): 洗腦子

xǐnǎozi ㄒㄧˇ ㄋㄠˇ ˙ㄗ

    • to brainwash
    • to indoctrinate

Character by character

Saying俗语俗語

Idiom惯用语 · In everyday use

Literally
wash the brain
Meaning
To change someone's thinking through indoctrination, criticism or forced self-criticism. Usually critical. Equivalent to 'brainwash'.

Sources