That's high-grade stuff. Could be Peruvian flake.
6 seconds sound clip from the Cheech and Chong's Up in Smoke movie soundboard.
You can hear this line at 00:33:22 in the Blu-ray version of the movie.
Quote context
[...]
- Hey, Sergeant, get a load of these two.
- That's high-grade stuff. Could be Peruvian flake.
- This is very serious. This stuff destroys your mind.
- Can't you see she's sick? She's been through a lot in a short period of time. She's all fucked up.
- You watch your language, miss.
- Harry, remember to get a lab sample of this stuff.
[...]