Promise the world

Hi,

Is this sentence correct:

She told him 'You don't have to promise me the world'?

What does 'promise someone the world' mean? I looked it up in the dictionary and I only found 'promise the moon/ the earth'

Is 'promise the world' correct? and is it used in colloquial english?

Thank you

[Noego]

I believe that "promising someone the world" has the same meaning as "promising the moon, the Earth."

She told him: "You don't have to promise me the world!"

I removed the question mark (?) as I didn't see how it would make sense to put one there.