Top Definition
The knob that the sound guy thrns when the band pisses him off. see also suck button.
Band guy: "Dude, My Cowbell is more important than the lead guitar, it needs to be louder"

Sound Guy: "Fuck you, asshole"...then turns the suck knob to 11.
by King Kong December 15, 2003
1 Word related to Suck Knob

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