- Yes?
- Hello. Can we have your liver?
- What?
- Your liver. It's a large glandular organ in your abdomen. You know, it's reddish-brown, it's sort of...
- Yeah, yeah, I know what it is, but I'm using it.

— (John Cleese)

19 seconds sound clip from the Monty Python's The Meaning of Life movie soundboard.

You can hear this line at 01:08:55.142 in the Blu-ray version of the movie.

Quote context

[...]

- Waiter? This conversation isn't very good.

- Oh, I'm sorry, sir.

- We do have one today that's not on the menu. It's sort of a specialty of the house, you know? 'Live organ transplants.'

- Live organ transplants? What's that?

- The Meaning of Life, part five. Live organ transplants.

- Don't worry, dear. I'll get it.

- Yes?

- Hello. Can we have your liver?

- What?

- Your liver. It's a large glandular organ in your abdomen. You know, it's reddish-brown, it's sort of...

- Yeah, yeah, I know what it is, but I'm using it.

- Come on, sir. Don't muck us about. Hello!

- What's this, then?

- A liver donor's card.

- Need we say more?

- No.

- Listen, I can't give it to you now. It says, 'In the event of death.' My God!

- No one has ever had their liver taken out by us and survived.

- Just lie there, sir. It won't take a minute.

[...]