No, but I know this grapevine.
4 seconds sound clip from the Johnny Dangerously movie soundboard.
You can hear this line at 01:18:19 in the DVD version of the movie.
Quote context
[...]
- Urgent message through the grapevine, Johnny.
- Johnny and the Mothers are playing Stomping at the Savoy in Vermont tonight.
- Vermin's gonna kill my brother at the Savoy theater tonight.
- No, but I know this grapevine.
- Yeah?
- Smell that food. I think it's rotten.
- What's all this about, Johnny?
[...]