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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

fed up with

tired or annoyed with something

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brush past

to move quickly by someone or something with slight contact

rein in

to control or limit something

green-eyed jealousy

strong feeling of envy

Tech-savvy

Having good knowledge of modern technology.