This idiom or expression can best be explained through an example:

When someone says “Let me have it,” they could mean any of the following:

Do it.
I’m ready.
Tell me about it.
Pour me a drink.
Deal me some cards.

When someone says “Let me have it,” they could mean any of the following:

Do it.
I’m ready.
Tell me about it.
Pour me a drink.
Deal me some cards.

This idiom or expression can best be explained through an example:

When someone says “Sock it to me,” they could mean any of the following:

Do it.
I’m ready.
Tell me about it.
Pour me a drink.
Deal me some cards. Etc.

This idiom or expression like sentence means:

Do it.

Also:
Make it happen.
Make it a reality.

This idiom or expression means:

Doing it.
Getting started on it.