Redneck noise, dude. That's all it is.
4 seconds sound clip from the Platoon movie soundboard.
You can hear this line at 00:32:38 in the Blu-ray version of the movie.
Quote context
[...]
- Man, where the hell is everybody, man? They're getting high, that's what.
- Bunch of hopheads. They think they're something special, man.
- Listen to that. That's a bad jam.
- Redneck noise, dude. That's all it is.
- Make about as much sense as you do.
- Fuck that honky shit. Ought to give me some Motown jams, dig it?
- Man, what are you talking shit for, man?
- Hey, Junior, you ever smoke any shit?
[...]