What is the meaning of strong-arm?

verb

• Handle roughly.
  • usage: "He was strong-armed by the policemen"
• Be bossy towards.
  • usage: "Her big brother always bullied her when she was young"
  • synonyms: bully, browbeat, bullyrag, ballyrag, boss around, hector, push around
• Use physical force against.
  • usage: "They strong-armed me when I left the restaurant"

adjective

• Impelled by physical force especially against resistance.
  • usage: "forcible entry"; "a real cop would get physical"; "strong-arm tactics"
  • synonyms: forcible, physical