can opener

noun

1. A device used to open tin cans, usually by slicing the lid off.
2. A shoulder hit to the chest, usually accomplished while moving from a crouched to a standing position.
3. A tool for safe-cracking.

   “Even the work of opening a safe with nitroglycerine or with a can opener places the criminal in a state of nervous tension.”

   ““I wonder why they didn't use 'soup' (nitroglycerine) snuffing the drum (blowing safe) instead of a 'can-opener,” (3 ft. steel rod, pointed one end to punch starting hole in bottom of safe, other end shaped like a can opener to peal^([sic]) the bottom of safe open.) commented McLaughlin? ^([sic])”

4. A ramming maneuver, that opens up the target ship like a tin can.
5. An anti-tank munition or attack vehicle, that opens up armour like a tin can.