It's drugs.
4 seconds sound clip from the The Breakfast Club movie soundboard.
You can hear this line at 00:44:58 in the Blu-ray version of the movie.
Quote context
[...]
- This is so stupid. Why are we risking getting caught?
- You ask me one more question, and I'm beating the shit out of you.
- Sorry.
- Screw that, Bender. Put it back.
- Drugs. The boy has marijuana. That was marijuana.
- We'll cross through the lab, and then we'll double back.
[...]