It's the kind of dope they used to put carpet in. You know, they'd mix it up in the bathtub and while they were mixing it up in the bathtub, they'd drop in a hunk of carpet into it.
9 seconds sound clip from the Boogie Nights (1997) movie soundboard.
You can hear this line at 01:35:04.069 in the Blu-ray version of the movie.
Quote context
[...]
- You got a great kisser, but, you know, there's a lot of work involved, a lot of people.
- No, no, no. It's crystal, man. You just wanna do bumps.
- What?
- It's fucking getting me fucking high, man.
- Yeah. It's that carpet dope.
- You look good. You ready? You ready?
- Again. You ready? I'm born ready. Come on.
[...]