The lab is an awful, awful, awful, awful mess. Attaboy.

6 seconds sound clip from the Back to the Future Part II movie soundboard.

You can hear this line at 00:52:07.833 in the Blu-ray version of the movie.

Quote context

[...]

- I went to the public library to try to make sense out of all the madness.

- The place was boarded up, shut down, so I broke in and borrowed some newspapers.

- I don't get it, Doc. I mean, how can all this be happening? It's like we're in hell or something.

- No, it's Hill Valley. Although, I can't imagine hell being much worse.

- Oh, Einie. I'm sorry, boy.

- The lab is an awful, awful, awful, awful mess. Attaboy.

- Obviously, the time continuum has been disrupted, creating this new temporal event sequence resulting in this alternate reality.

- English, Doc!

- Here, here, here. Let me illustrate.

- Imagine that this line represents time. Here's the present, 1985, the future and the past.

[...]