抹黑 mǒhēi

mǒhēi verb to discredit; to defame; to smear
Domain: Modern Chinese 现代汉语
Notes: (CC-CEDICT '抹黑'; Guoyu '抹黑')

Contained in

• 往脸上抹黑(往臉上抹黑) to bring shame to; to smear; to disgrace