Correct

狮子大开口

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Strokes
https://i.cchatty2.com/filters:format(webp)/fit-in/684x0/img/202102/狮子大开口-Chinese-idioms-Cchatty-15acfa58-f7ab-4881-b35d-0ce363d4d096-1612777727.jpg

Collocation

1
狮子大开口的做法
2
来个狮子大开口
3
敢于狮子大开口
4
竟然狮子大开口

Definition

狮子大开口

Literally means:

a lion opens its mouth wide

Actually means:

make an excessive demand

This phrase metaphorically means making an excessive demand. It often refers to demanding an exorbitant price in a business deal or claim. Derogatory.

狮子张开大嘴巴。比喻要求得到数量很多的钱财或其他东西。多用来指在买卖、索赔中开出大价钱。多具有贬义色彩。

Example

Used as predicate, object or attributive. (作谓语、宾语、定语)
1
Zhè
jiàn
dǒng
古董
shì
fǎngzào
仿造
de
  
,
jiàzhí
价值
gāo
  
,
wèishénme
为什么
shīkāikǒu
狮子大开口
  
,
yào
zhème
这么
gāo
de
jiàqian
价钱
  
?

This antique is imitation, the value is not high, why do you lion big opening, to such a high price?

2
Rénjiā
人家
shì
xiǎo
企业
  
,
何必
lái
shīkāikǒu
狮子大开口
  
,
suǒyào
索要
zhème
这么
de
chūchǎngfèi
出场费
  
?

People are a small business, why do you want a lion big opening, ask for such a large appearance fee?

3
Zhè
jiāhuo
家伙
de
wèikǒu
胃口
hěn
  
,
jìngrán
竟然
xiǎng
yào
shōugòu
收购
zhège
这个
ōu
地区
suǒyǒu
所有
de
jiāyóuzhàn
加油站
  
,
zhèzhǒng
这种
shīkāikǒu
狮子大开口
de
zuò
做法
shì
xíngbutōng
行不通
de
  

This guy has such an appetite that he wants to buy all the gas stations in the area, and this lion-talking approach doesn't work.