I bought him an ounce of grass.
4 seconds sound clip from the Cruising movie soundboard.
You can hear this line at 01:00:04 in the Blu-ray version of the movie.
Quote context
[...]
- I see them every day. They give them out where I work.
- What do you want from me, huh?
- You're a lying son of a bitch.
- The day Martino Perry was killed, you were seen coming out of his store.
- I bought him an ounce of grass.
- What?
- Watch my lips. Get your pants down!
- You're gonna jerk off, mister. We're gonna get a sample of your sperm.
- Then you're gonna take the floating-ball test.
[...]