a loose cannon

a person who cannot be completely trusted because their behaviour is sometimes strange or violent He's seen as a loose cannon by other team members. If anyone's going to get into a fight, it'll be Pete.

Common Names:

Name	Pronounced	Usage
Ocean	O-shən	English (Rare)
Arnt	-	Norwegian
Mathias	mah-TEE-ahs (German)	French, German, Swedish, Norwegian, Danish
PhÚC	-	Vietnamese
Kasumi	kah-soo-mee	Japanese
Kagiso	-	Southern African, Tswana