I'm the Dude. So that's what you call me. You know? That or His Dudeness, or Duder or, you know, El Duderino, if you're not into the whole brevity thing.
14 seconds sound clip from the The Big Lebowski movie soundboard.
You can hear this line at 00:13:16 in the Blu-ray version of the movie.
Quote context
[...]
- Come on, man. I'm not trying to scam anybody here. You know, I'm just...
- You're just looking for a handout like every other...
- Are you employed, Mr. Lebowski?
- Wait. Let me explain something to you.
- I am not Mr. Lebowski. You're Mr. Lebowski.
- You don't go out looking for a job dressed like that, do you? On a weekday?
- Is this a... What day is this?
- Well, I do work, sir. So, if you don't mind...
[...]