- Give us our ball back!
- What ball?
- That ball!
- What ball are you talking about?
- Give us our ball!
- What ball?

10 seconds sound clip from the Back to the Future Part II movie soundboard.

You can hear this line at 01:04:28.999 in the Blu-ray version of the movie.

Quote context

[...]

- It's the only Tannen in the book, but I don't think this is Biff's house. It looks like some old lady lives here.

- Biff!

- Yeah.

- Where are you going, Biff?

- I'm going to get my car, Grandma.

- When are you coming back? My feet hurt, and I want you to rub my toes some more.

- Shut up, you old bag.

- Give us our ball back!

- What ball?

- That ball!

- What ball are you talking about?

- Give us our ball!

- What ball?

- Is this your ball?

- Yeah!

- Is it your ball? You want it back?

- Yeah.

- Go get it.

- Doc, it is Biff's house. I'm on him. Over.

- Looking good, Terry.

- Hey, Biff, she's all fixed up just like new, but I couldn't get her started.

- You got some kind of kill switch on this thing?

- No, you just gotta have the right touch. Nobody can start this car but me.

[...]