let one have it

let one have it  {v. phr.}

1a.  {slang}

To hit hard.

He drew back his fist and let the man have it.

Give him a kick in the pants; let him have it!

Syn.: GIVE IT TO.

1b.  {slang}

To use a weapon on; to shoot or knife.

The guard pulled his gun and let the robber have it in the leg.

Compare: OPEN UP.

1c. or let one have it with both barrels  {slang}

To attack with words; scold; criticize.

Mary kept talking in class until the teacher became angry and let her have it.

Syn.: LIGHT INTO (2).

2.  {informal}

To tell about it. — Used in the imperative phrase, "let's have it".

Now, Mary, let's have it from the beginning.