- I thought you said high school.
- Yeah. Shocking, isn't it?
- Yes, it is.

9 seconds sound clip from the Old School movie soundboard.

You can hear this line at 00:30:41 in the Blu-ray version of the movie.

Quote context

[...]

- How was the slumber party?

- Great. You know, movies and popcorn.

- She's an angel. I know it makes me sound an old man, but I can't believe how fast she's growing up.

- Dad, stop.

- I'm sorry honey, but it's true. To think that in just seven months you'll be graduating from high school!

- You okay?

- I thought you said high school.

- Yeah. Shocking, isn't it?

- Yes, it is.

- Give me a break.

- Hey, Mitch.

- Hey, man. Did you have a good day?

- Not too bad. What's going on?

[...]