Correct

泼脏水

/ pō zāngshuǐ /
Strokes

Definition

(lit.) to splash dirty water/(fig.) to throw mud at/to smear (sb)

Example

Definition

fling/sling/throw mud at; slander

1
Wèile
为了
huǐ
诋毁
de
míng
名誉
  
,
yǒurén
有人
tíng
不停
wǎng
shēnshàng
身上
zāng
shuǐ
  

Someone has kept throwing mud at her in order to vilify her reputation.