It's a deal

It's a deal.

Okay.; It is agreed. You want to sell me your stereo for $100? It's a deal. Bill: Let's go to dinner together tonight. Mary: It's a deal.
See also: deal
References in classic literature ?
As to why I come here, the reason is that it's a deal easier for me
The man that invented the machine for taking likenesses might have known that would never succeed; it's a deal too honest.
It's a deal the best way o' being master, to let somebody else do the ordering, and keep the blaming in your own hands.