Tomorrow we get to the big boys, slowly but surely making our way up to the Monstrous Nightmare.

9 seconds sound clip from the How to Train Your Dragon movie soundboard.

You can hear this line at 00:33:59 in the Blu-ray version of the movie.

Quote context

[...]

- I swear, I'm so angry now. I'll avenge your beautiful hand and your beautiful foot.

- I'll chop off the legs of every dragon I fight, with my face.

- Mm-mmm, no. It's the wings and tail you really want. If it can't fly, it can't get away. A downed dragon is a dead dragon.

(YAWNS)

- All right, I'm off to bed. You should be, too.

- Tomorrow we get to the big boys, slowly but surely making our way up to the Monstrous Nightmare.

- But who'll win the honour of killing it?

- It's gonna be me. It's my destiny. See?

- Your mom let you get a tattoo?

- It's not a tattoo, it's a birthmark.

- OK, I've been stuck with you since birth, and that was never there before.

[...]