LOOSECANNON

loose cannon

Noun

  1. A cannon that breaks loose from its moorings on a ship during battle or storm, which has the potential to cause serious damage to the ship and its crew.
  2. An uncontrolled or unpredictable person who causes damage to their own faction, political party, etc.
    Jack is considered a loose cannon due to his volatile personality and his track record of being unable to maintain his composure.

Verb

  1. To behave in a way such as to cause damage to one's own faction, political party etc.


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