Correct

红口白舌

/ hóng kǒu bái shé /
Strokes
https://i.cchatty2.com/filters:format(webp)/fit-in/684x0/img/202102/红口白舌-Chinese-idioms-Cchatty-c8649218-aba1-4ca2-be3a-008cbe7e0fa7-1612777927.jpg

Collocation

1
红口白舌地诬陷别人
2
红口白舌说的话
3
红口白舌的家伙
4
为什么红口白舌
5
凭什么红口白舌
6
怎么红口白舌
7
不要红口白舌乱说

Definition

红口白舌

Literally means:

red mouth and white tongue

Actually means:

melicious tongue

Hurt or curse others with malicious words for no reason at all. Derogatory.

无缘无故地用恶毒的言语伤人或诅咒别人。具有贬义色彩。

Example

Often used as adverbial adjunct and predicate. 多 (作状语、谓语)
1
Xiǎolíngr  
小灵儿
得意
shuō
  
:
shì
shīfu
师父
yǎnzhōng
眼中
cōngming
聪明
kěn
xué
de
hǎo
徒弟
  
,
diēniáng
爹娘
yǎnzhōng
眼中
de
guāi
ér
女儿
  
,
buyào
不要
hóngkǒu
红口
báishé
白舌
huài
le
de
míngshēng
名声
  

The little spirit said proudly, "I am a clever and learned apprentice in Master's eyes, a good daughter in my father's eyes, you do not want red mouth and white tongue to damage my reputation. "

2
ge
那个
泼妇
shìshì
是不是
yòu
zài
rén
le
  
?
Zhè
这次
yào
jiàoxun
教训
jiàoxun
教训
le
  
,
juéduì
绝对
néng
ràng
suí
随意
hóngkǒu
红口
báishérén
白舌地人
  

Is that swearing again? This time I have to teach her a lesson, absolutely can not let her feel free to red-mouthed people.

3
píng
shénme
什么
hóngkǒu
红口
báishé
白舌
  
,
miè
诬蔑
故意
wéikàng
违抗
shàng
上级
de
zhǐshì
指示
  
?

Why do you use red tongues to vilify me for deliberately defying my superiors' instructions?