How can I use "more of+ ordinal number"?

[mokbon]

Hello
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it's more of a fifth date kinda revelation.
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(source: friends s1 ep1)

I think this means I will not say until fifth date

Questions are..
1. Is this a casual way to say this?

2. Is there better way to express in this way?

[Khosro]

Hello
------------------------------------------
it's more of a fifth date kinda revelation.
------------------------------------------
(source: friends s1 ep1)

I think this means I will not say until fifth date

Questions are..
1. Is this a casual way to say this?

2. Is there better way to express in this way?

What you think is right. But he/she did not want to say it so directly. He/she did not want to say that he/she won't say it ... but he/she prefers to say:"Don't you think it is too soon for this kind of revelation?"

question 1: I don't know. are you asking if it is formal or informal? I have no idea. I know that it is a nice sentence.

Question 2: Why a better way? Don't you like this sentence? I recommend that you understand the logic of it and try to use it in similar situations.

These are 3 examples from Macmillan. One with "more of a" and the other two just with "more":

What she said was more of a mistake than a crime.
I was more amused than schocked by what she told me.
The words were spoken more in sadness than in anger.

[BobK]

...So it's only 'more of a + ordinal' by accident: (more of a) (fifth date) revelation.

b

[Coolfootluke]

Hello
------------------------------------------
it's more of a fifth date kinda revelation.
------------------------------------------
(source: friends s1 ep1)

I think this means I will not say until fifth date

Questions are..
1. Is this a casual way to say this?

2. Is there better way to express in this way?

I am not a teacher.

I think your interpretation is good, except that it's not "more of + ordinal", it's "more of a thing than an unsaid other thing". In this case, it's more of a revelation one makes after getting to know the person than a revelation one makes immediately.

It is colloquial and casual to leave the second part unsaid. That "of" is idiomatic.