muscle definition

1. one of the contractile organs of the body
2. animal tissue consisting predominantly of contractile cells
3. a bully employed as a thug or bodyguard
• examples: the drug lord had his muscleman to protect him
4. authority or power or force (especially when used in a coercive way)
• examples: the senators used their muscle to get the party leader to resign
5. make one's way by force
• examples: He muscled his way into the office