He's cracking.
3 seconds sound clip from the The Big Lebowski movie soundboard.
You can hear this line at 01:41:06 in the Blu-ray version of the movie.
Quote context
[...]
- It's Bush league psych-out stuff.
- I would've fucked you in the ass Saturday.
- I'll fuck you in the ass next Wednesday instead.
- You got a date Wednesday, baby!
- Well, they finally did it. They killed my fucking car.
- We want the money, Lebowski.
- Ja. Otherwise, we kill the girl.
- Ja. It seems you have forgotten our little deal, Lebowski.
[...]