I'll tell you

I'll tell you

1. non-idiomatic I will simply state it. You don't need to guess. I'll tell you. My middle name is Marvin.
2. A phrase emphasizing that the speaker is about to present a thought or their opinion on something. I'll tell you, this burger might be the best I've ever hard.
See also: tell
References in classic literature ?
And I'll tell you what: I'll make a man of you, Jim.
"It's not Flint's ship, and Flint is dead; but I'll tell you true, as you ask me--there are some of Flint's hands aboard; worse luck for the rest of us."
"I'll tell you what it is, boys we haven't been half good enough to Rose, and we've got to make it up to her somehow," said Archie, who had a very manly sense of honour about paying his debts, even to a girl.
"Don't be silly, but get up, and I'll tell you something much better to do than sprawling on the floor and getting all over lint."
"Now den, I'll tell you straight off, en I'll begin to k'leck de money later on; I ain't in no hurry.
'Now, Miss Grey,' exclaimed Miss Murray, immediately I entered the schoolroom, after having taken off my outdoor garments, upon returning from my four weeks' recreation, 'Now--shut the door, and sit down, and I'll tell you all about the ball.'
"I'll tell you everything," Miles said--"I mean I'll tell you anything you like.
"I'll tell you. Suppose you're married, you love your wife, but you're fascinated by another woman..."
However, the fox bid him be of good cheer, and said, 'I will help you; lie down there, stretch yourself out quite stiff, and pretend to be dead.' The horse did as he was told, and the fox went straight to the lion who lived in a cave close by, and said to him, 'A little way off lies a dead horse; come with me and you may make an excellent meal of his carcase.' The lion was greatly pleased, and set off immediately; and when they came to the horse, the fox said, 'You will not be able to eat him comfortably here; I'll tell you what--I will tie you fast to his tail, and then you can draw him to your den, and eat him at your leisure.'
I'll tell you exactly what you've got to do, and you needn't think you're going to do anything else.
"No, it's something I'll tell you about by-and-by, not yet," said Tom, skipping away.
"Miss Mary Jane, I'll tell you what we'll do, and you won't have to stay at Mr.
Now I'll tell you something more, wolf, and this ends it.
I'll tell you wot it is, sir; them as is always a-idlin' in public-houses it don't damage at all, and them as is alvays a-workin' wen they can, it damages too much.
But I'll tell you what I do see, Arthur,' glancing up at the windows; 'I see the light of fire and candle in your mother's room!'