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a loose cannon

Idiom Safety

Meaning

A person who behaves unpredictably and may cause problems.

Example Sentences

"Be careful with him — he’s a loose cannon."

Related Expressions

gather up

to collect things together

can't believe your eyes

to be so surprised that you doubt what you are seeing

go nuclear

to react very strongly or angrily

zoom in

to focus closely on something

break someone’s heart

to make someone very sad

back on track

to return to the right path or plan