Definitions
There is 1 meaning of the phrase
Loose Cannon.
Loose Cannon - as a noun
A person who is expected to perform a particular task but who is out of control and dangerous
Example Sentences
"He's unpredictable and dangerous, a loose cannon."
"His reckless behavior at work earned him a reputation as a loose cannon."
"The politician's controversial statements made him seem like a loose cannon."
"The coach was frustrated with the loose cannon player who never followed instructions."
"She's talented, but her temper makes her a loose cannon on the set."