Related Clues:

• Rumble weapon
• Weapon
• Prison weapon
• Knife, in the slammer
• Switchblade, slangily
• Weapon in a rumble
• Con's blade
• Film noir knife
• Knife, slangily
• Weapon in a gang fight
• Joint protection?
• Jail weapon
• Prison blade
• Blade, in the joint
• Prisoner's knife