Definition of "knucks" []

• Brass knuckles (noun)

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• "He hides in the alley and turns the hose on uncle Ephraim's standing collar as he passes on his way to church, he cracks chestnut burrs with his naked heel; he robs birds 'nests, and murders bullfrogs, and plays "knucks" and "base-ball.""
• "I'd really rather have a man spar me with bare 'knucks' than with eight-ounce pillows."
• "At times "knucks" was the favorite pastime and those who are afraid of bodily injuries in modern games should be comforted by the fact that a serious injury to the knee from much kneeling resulted to one of our students, who was taken to Baltimore for treatment by a specialist."