To go to bat someone: To defend somebody.

I’m tired of going to bat for you and your show.

Call the shots: To make the decisions.

So, you’re calling the shots now?

Throw in the towel: To give up.

Throw in the towel.

The home stretch: To complete something.

Being tough. You’re in the home stretch. 

Give it your best shot: Do your best

Well, then Nigel.

Give your best shot.

To get off the hook: To escape punishment.

I don’t have a choice.

I get some kind of hope in you come back over the railing, get off the hook here.

The ball is in your court: It’s up to you.

I said no. But you need, right back in the driver’s seat.

So, the ball is in his court?

I could use something: When you would really like to have something.

Well, do either of you smoke?

No, not usually, but yeah, I could use one (cigarette) right now.

Be in a rut: To be stuck in a boring or unchanging routine, often feeling unmotivated or uninspired. It usually implies doing the same things repeatedly without any excitement or progress.

You’re stuck in a rut. That’s why you can’t face retirement.

No big deal: Not important or not a problem.

Forget it mom, it’s no big deal.

No, it is a big deal.