mǒ hēi
to discredit
to defame
to smear sb's name
to bring shame upon (oneself or one's family etc)
to blacken (e.g. commando's face for camouflage)
to black out or obliterate (e.g. censored words)
wǎng liǎn shàng mǒ hēi
to bring shame to
to smear
to disgrace
wū qī mā hēi
see 烏漆墨黑|乌漆墨黑[wu1 qi1 mo4 hei1]