No, I'm serious. Let's do it. Let's do it on Friday.
5 seconds sound clip from the Billy Madison movie soundboard.
You can hear this line at 01:11:39 in the Blu-ray version of the movie.
Quote context
[...]
- What does that mean? Carl, what does that mean?
- Let's take it a little easy here, Billy, huh?
- No, I'm serious. Let's do it. Let's do it on Friday.
- Is that all right with you, Daddy?
- Well, if you think you can beat him.
[...]