- What's it say on that envelope?
- 'Most recent rat.'

6 seconds sound clip from the Dead Men Don't Wear Plaid movie soundboard.

You can hear this line at 00:24:49 in the Blu-ray version of the movie.

Quote context

[...]

- Breakfast? You're late for lunch, pal. It's two o'clock.

- Two o'clock?

- Why don't you hustle on over here. I'll make you a cup of my famous java.

- I'd rather buy my own.

- Suit yourself. See ya in a half-hour. And Marlowe. Wear a tie, for God's sake.

- What's that?

- I found it in Daddy's desk.

- It looks like a key to one of those lockers at the train station. Number's been filed off.

- What's it say on that envelope?

- 'Most recent rat.'

- Very clever.

- You mean you understand what it means?

- Just a hunch.

- You know the Chinese have a different animal for every year?

- Yes.

- Unless I miss my guess the most recent Year of the Rat was 1936.

- This is the key to locker number 1936.

[...]