Correct

大白天说梦话

/ dà bái tiān shuō mèng huà /
Strokes
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Collocation

1
喜欢大白天说梦话
2
八成是大白天说梦话
3
一定是大白天说梦话
4
真是大白天说梦话
5
简直是大白天说梦话

Definition

大白天说梦话:

Literally means:

spin daydream; put forward impractical ideas.

Actually means:

Somniloquy is usually uttered in dreams at night.

To speak somniloquy in broad daylight figuratively means to speak of nonsense or put forward impractical proposals.

It sometimes implies the speaker's doubt or blame on something.

梦话,通常是夜里做梦时才说的话。白天说梦话,比喻说出没有事实依据的话,

或提出不可实现的想法。有时包含了说话人的怀疑或责备。

Example

Used as predicate, object, as a minor sentence or an independent sentence. It can have other words in between. (作谓语、宾语,也可以做小句或独立成句,有时中间可以插入别的词语)
1
shuō
nénggòu
能够
zài
jiǔ
miǎozhōng
秒钟
nèi
pǎo
wán
bǎi
一百
  
,
jiā
大家
dōu
rènwéi
认为
zhè
shì
báitiān
大白天
shuōmènghuà
说梦话
  
,
méiyǒu
没有
rén
xiāngxìn
相信
  

He said he could run a hundred meters in nine seconds, but everyone thought it was a dream in broad daylight and no one believed him.

2
Zhège
这个
rén
jiùshì
就是
huan
喜欢
báitiān
大白天
shuōmènghuà
说梦话
  
,
zhěngtiān
整天
shuō
yào
dāng
lǎobǎn
老板
  
,
zuòjiā
作家
  
,
shì
可是
shénme
什么
xíng
不行
  
,
zhè
zěnme
怎么
néng
可能
ne
  
?

This person just likes to dream in broad daylight, all day long to be a big boss, big writer, but he can't do anything, how is that possible?

3
Lǎomèng
老孟
shuō
  
:
yàoshi
要是
yuè
yǒu
qiān
八千
kuài
jiù
hǎo
le
  
,
wǎng
yínháng
银行
cún
  
,
shá
gàn
  
Lǎobàn
老伴
zài
páng
一旁
tōutōu
偷偷
xiào
  
:
báitiān
大白天
shuōmènghuà
说梦话
  
,
yǒu
ge
那个
  
?

Lao Meng said: "If only I had eight thousand dollars a month, to the bank, do nothing." "The old companion secretly smiled on the side: "In broad daylight to say dream words, where is that blessing?"