the arm

1. A crushing headlock which robs the victim of conciousness before the commission of a crude crime such as robbery or rape; the mugg. 2. Force; the threat of force. 3. Without payment, as on the arm. "C'mon, we'll go out and free load (get without payment) some scat (whiskey). I can put it on the arm in these joints."

- american underworld lingo - 1950
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