- What are you guys studying anyway?
- History.

4 seconds sound clip from the Bill & Ted's Excellent Adventure movie soundboard.

You can hear this line at 00:12:08 in the Blu-ray version of the movie.

Quote context

[...]

- How's it going, guys?

- Bad!

- We are destined to flunk most egregiously tomorrow.

- And I am destined to end up at Oates Military Academy.

- And then we will never start our band.

- Good. Good.

- What are you guys studying anyway?

- History.

- Mr. Ryan?

- Uh-huh.

- Tell him, hi.

- Why don't you guys take a dinner break?

- Thanks, Dad.

- Now your dad's going for it in your own room! (chuckles)

[...]