Why is it called a knuckle?
The term 'knuckle' originates from the combination of 'knuckle-duster,' a face-busting, hand-protecting metal knuckle-guard, and 'duster,' a type of protective coat worn by workmen. The word implies a weapon used in fistfights, specifically designed to protect the user's hand while delivering a punch.
Is a knuckle a currency?
I recently encountered the term 'knuckle' and was intrigued. I'm wondering if it refers to a type of currency. Could someone clarify if a knuckle is indeed a form of monetary exchange or if it has another meaning?