I'll say

I'll say

That's very true; I really agree; absolutely. A: "Wow, this bookshop has everything." B: "I'll say! I didn't even know copies of this book still existed!" A: "Did Billy enjoy his first day at school?" B: "I'll say he did! He didn't even want me to take him home at the end of the day."
See also: say

I'll say

Absolutely, I strongly agree. For example, Did you enjoy the film?-I'll say. This phrase is generally used alone and for emphasis. [First half of 1900s] For a synonym, see you can say that again.
See also: say
References in classic literature ?
Yes, ma'am,' I'll say, 'Burning Daylight was a pretty good cuss, but it's better that he's gone.
I'll say that he is wise who loveth well, And that the soul most free is that most bound In thraldom to the ancient tyrant Love.
Give me the dog, and I'll say no more about the cat.
I'll go to her; I'll ask her; I'll say for the last time: we are free, and hadn't we better stay so?
I'll go a little further with you; I'll say something more.
I assure you I'll say my prayers with a right good-will tonight.
If you an't the devil, Tom, you 's his twin brother, I'll say that for ye
You just say, 'Because she is,' and I'll say it's mere assertion.
But one thing I'll say, and no more; if you spare me, bygones are bygones, and when you fellows are in court for piracy, I'll save you all I can.
I'll say it now and I'll say it to his face: Come on, Michael - this is professional sport.
Jan Smith, 56, who runs a pub in Ayton, Washington picked gymnastics: "I don't know, really, if I have a favourite, but I'll say gymnastics.
If Stuart asks me if I'm ready to play I'll say 'absolutely'.
I'VE said it before and I'll say it again, we'll get nowhere with kerb crawling until we get a whole lot tougher on the men who think they're entitled to trawl the streets looking for sex.
a headache from too much stress, but I'll say it now.
I SAID it last year for the Falkirk v Dunfermline semi-final and I'll say it again for Dundee United v Raith Rovers.