Well, it just so happens that your friend here is only mostly dead. There's a big difference between mostly dead and all dead.
10 seconds sound clip from the The Princess Bride (1987) movie soundboard.
You can hear this line at 01:12:13 in the Blu-ray version of the movie.
Quote context
[...]
- Your first story was better.
- He probably owes you money, huh? Well, I'll ask him.
- Ooh-hoo-hoo! Look who knows so much, huh?
- Now, mostly dead is slightly alive.
[...]