The smell's never gonna go away, Biff. Never gonna go away.
3 seconds sound clip from the Back to the Future Part II movie soundboard.
You can hear this line at 01:06:01.288 in the Blu-ray version of the movie.
Quote context
[...]
- It's 300 bucks, Terry! If I catch the guy that caused this, I'll break his neck.
- The manure. I remember that.
- Four cans of Valvoline is fair, Biff.
- I couldn't even have lunch in the shop. Makes me nauseous.
- I should get a case of oil out of you for a 300 buck job.
- You've been inside. It smells worse than the bathroom at a gas station.
- The smell's never gonna go away, Biff. Never gonna go away.
- Last time I do you a favor. Last time.
- Let me see. Oh! It's perfect, Lorraine. Oh, look at it! You're going to look so good!
- Well, lookey what we have here.
- Hey, nice dress, Lorraine. Although, I think you'd look better wearing nothing at all.
[...]