dude 1: did you see johnny carter in that [biffo] the other night?  dude 2: yeah, trust johnny to go the knuckle
a fight or other violent skirmish between at least two punters
"dude 1: did you see johnny carter in that [biffo] the other night?  dude 2: yeah, trust johnny to go the knuckle" What is the definition of "knuckle"?