Correct

太阳晒屁股

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Strokes
https://i.cchatty2.com/filters:format(webp)/fit-in/684x0/img/202102/太阳晒屁股-Chinese-idioms-Cchatty-36609ddf-914e-4979-bdcd-1aaa055c3a95-1612776868.jpg

Collocation

1
太阳晒屁股的时候
2
睡到太阳晒屁股
3
现在已经太阳晒屁股了
4
太阳都晒到屁股了

Definition

太阳晒屁股

Literally means:

the sunlight is on one's butt

Actually means:

late in the morning

It refers to the time of late morning. It is usually used to urge someone to get up.

指快中午的时候。多用于催人起床。

Example

Used as a minor sentence, or as predicate, complement or attributive. It can have other words in between. (作小句、谓语、补语、定语,中间可插入别的词语)
1
zhège
这个
lǎnchóng
懒虫
  
,
hái
gǎnkuài
赶快
lai
起来
  
,
tàiyang
太阳
dōu
jīng
已经
shài
gu
屁股
le
  
!

You lazy bug, don't get up quickly, the sun has sunbathed ass!

2
ma
妈妈
shuō
  
,
xiǎoháizi
小孩子
yào
zǎoshuì
早睡
zǎo
早起
  
,
可以
shuì
dào
tàiyang
太阳
shài
gu
屁股
cái
lai
起来
  

Mother said, children should go to bed early and get up early, can not sleep until the sun ass up.

3
Xiànzài
现在
jīng
已经
tàiyang
太阳
shài
gu
屁股
le
  
,
mài
zǎodiǎn
早点
de
dōu
shōutān
收摊
le
  
,
shàng
nǎr  
哪儿
chī
zǎofàn
早饭
  
?

Now the sun is on the ass, selling breakfast are closed, where do you go for breakfast?