Correct

露口风

/ lù kǒu fēng /
Strokes
https://i.cchatty2.com/filters:format(webp)/fit-in/684x0/img/202102/露口风-Chinese-idioms-Cchatty-6dc383f9-781c-48f6-8831-2716f04dcb74-1612778393.jpg

Collocation

1
不露口风
2
稍露口风
3
露了口风
4
不肯露半点儿口风
5
一点儿口风也没露

Definition

露口风

Literally means:

let the wind out of your mouth

Actually means:

It means revealing information when one talks. The phrase often indicates the unintentional revelation of related information.

从话语中透露出来的信息。多指无意中流露出相关信息。

Example

Often used as predicate, and can have other words in between. It can be used in an inverted order. (常作谓语,中间可以插入其他词语,可倒装使用)
1
de
zuǐba
嘴巴
hěn
jǐn
  
,
diǎnr  
一点儿
kǒufēng
口风
méi
  

His mouth was very tight and he didn't show any mouth.

2
Yào
bu
shì
kǒufēng
露口风
  
,
men
我们
jiā
大家
jiù
huì
不会
zhème
这么
kuài
zhīdào
知道
kǎoshì
考试
de
jiēguǒ
结果
  

Had it not been for his outspoken style, we would not all have known the result of the exam so quickly.

3
xiǎoxīn
小心
le
kǒufēng
口风
shuō
自己
yào
tiàocáo
跳槽
  
,
jiēguǒ
结果
èr
第二
tiān
jiù
bèi
chǎoyóu
炒鱿鱼
le
  

He accidentally opened his mouth and said he was going to jump ship, only to be fired the next day.