drag someone's name through the mud
US /dræɡ ˈsʌm.wʌnz neɪm θruː ðə mʌd/
UK /dræɡ ˈsʌm.wʌnz neɪm θruː ðə mʌd/

1.
抹黑某人的名聲, 詆毀某人
to say bad things about someone in order to damage their reputation
:
•
His political opponents tried to drag his name through the mud before the election.
他的政治對手試圖在選舉前抹黑他的名聲。
•
I won't let anyone drag my family's name through the mud.
我不會讓任何人抹黑我家族的名聲。