Correct

打黑枪

/ dǎ hēi qiāng /
Strokes
https://i.cchatty2.com/filters:format(webp)/fit-in/684x0/img/202102/打黑枪-Chinese-idioms-Cchatty-9025c6f3-9d33-4f6c-9c33-3dfe59bc1531-1612777193.jpg

Collocation

1
打黑枪的做法
2
喜欢打黑枪
3
背后打黑枪
4
在……上打黑枪
5
在……时候打黑枪

Definition

打黑枪

Literally means:

shoot from a hiding place

Actually means:

stab sb in the back

It figuratively means attacking or hurting others when they are not aware or alert. Derogatory.

比喻趁别人不知道,没有防备,偷偷地打击、伤害别人。多具有贬义色彩。

Example

Used as predicate, object or attributive. (作谓语、宾语、定语)
1
zhēn
méixiǎngdào
没想到
  
,
自己
zuì
hǎo
de
péngyou
朋友
jìngrán
竟然
zài
zuì
guānjiàn
关键
de
shíhou
时候
hēiqiāng
黑枪
  

I didn't expect my best friend to shoot black at the most critical time.

2
zhège
这个
rén
hěn
gòusi
不够意思
  
,
huan
喜欢
zài
bèihòu
背后
hēiqiāng
黑枪
  
,
dìng
一定
yào
xiǎoxīn
小心
  

He's not funny enough, he likes to shoot black guns in the back, you have to be careful of him.

3
Zhīyǒu
只有
bēi
卑鄙
xiǎorén
小人
cái
huì
zuò
dāngmiàn
当面
shuō
  
,
bèihòu
背后
hēiqiāng
黑枪
de
shìqing
事情
  

Only mean little people will do things that don't say in person, black guns behind their backs.