going to tell

going to tell

 and going to tattle
a threat that one is going to report someone's misdeed to someone in authority. If you do that again, I'm going to tell! Sue just went to the teacher. She's going to tattle.
See also: going, tell
References in classic literature ?
He was going to tell me how unhappy he would be if I did not care for him, but when he saw me cry he said he was a brute and would not add to my present trouble.
But what are we going to tell your aunt Sally has made us so long getting down here from the village, Tom?
What I know," she said, "or at least most of it, I am going to tell you.
In this book I am going to tell you about a few of our greatest story-tellers and their books.
And now, Miss Grey, attend to me; I'm going to tell you about the ball.
So much so," he admitted, "that I am going to tell you one or two things now.
You ought to be ashamed of yourself, Tom Sawyer; you know you're going to tell on me, and oh, what shall I do, what shall I do
If I told him what I am going to tell you, he would despise me.
What I was going to tell you, sir,' said Little Dorrit, 'is, that MY brother is at large.
Pashenka, please listen to what I am going to tell you as to a confession made to God at my last hour.
Pollyanna, dear, I'm going to tell you--the very first one of all.
So when he was enough master of himself to talk, he said, "I'm going to tell your uncle some news that'll surprise him, Hetty; and I think he'll be glad to hear it too.
Aynesworth," he remarked, "is going to tell you some interesting facts about myself.
I am going to tell you my story and that of the hind I have with me, and if you find it more marvellous than that of the merchant whom you are about to kill, I hope that you will do away with a third part of his punishment?
Now, all you children be quiet, Rudolph is going to tell about the murder.