Correct

机灵鬼

/ jī líng guǐ / 
Strokes
https://i.cchatty2.com/filters:format(webp)/fit-in/684x0/img/202102/机灵鬼-Chinese-idioms-Cchatty-33ec928a-7402-4115-8fc2-a013fbd9fc2b-1612777507.jpg

Collocation

1
谁说不是机灵鬼
2
真是个机灵鬼
3
你这个机灵鬼
4
被称为机灵鬼
5
某人是个机灵鬼
6
小机灵鬼

Definition

机灵鬼

Literally means:

clever devils

Actually means:

a devilishly clever child

机灵 in Chinese means being clever and smart.

This phrase refers to a clever, smart and intelligent person, often a child. It implies the feeling of appreciation and favor, often used in oral Chinese. Commendatory.

机灵,聪明、伶俐。

形容聪明、伶俐、灵活的人,多指小孩子。含有赞赏,喜爱的意味。多用于口语。具有褒义色彩。

Example

Used as an appositive clause or attributive. (作同位语、宾语)
1
Méi
没
xiǎngdào
想到
yī
一
kāishǐ
开始
bǐsài
比赛
  
,
xiǎo
小
jīlíngguǐ
机灵鬼
nánnán
楠楠
jiù
就
ná
拿
dào
到
liǎo
了
tǐcāo
体操
shìjǐnsài
世锦赛
de
的
yī
一
kuài
块
tóngpái
铜牌
  
。

Didn't expect to start the competition, small clever ghost Nan Nan got a bronze medal in the gymnastics world championships.

2
Dāng
当
bānzhǔrèn
班主任
liǎng
两
gè
个
yuè
月
le
了
  
,
bùguò
不过
zuìjìn
最近
wǒ
我
cái
才
fāxiàn
发现
bānshàng
班上
yǒu
有
gè
个
jīlíngguǐ
机灵鬼
  
,
tā
他
jiùshì
就是
líndàwéi
林大为
  
。

When the head teacher for two months, but only recently I found that there is a clever ghost in the class, he is Lin Dawei.

3
Tā
他
fēicháng
非常
cōngming
聪明
  
,
yě
也
shí
十
fēn
分
jīmǐn
机敏
  
,
dàhuǒ
大伙
méi
没
jī
几
tiān
天
jiù
就
xǐhuan
喜欢
shàng
上
le
了
zhège
这个
xiǎo
小
jīlíngguǐ
机灵鬼
  
。

He was very clever and quick-witted, and the guys fell in love with the little clever ghost in a few days.