get something off your chest phrase
to talk to someone about something that has been worrying you, so that you feel better about it
He came to see me because he wanted to get something off his chest.
Thesaurus: to be, or to become calm and stop worryingsynonym
Main entry: chest
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get (something) off your chest
: to tell someone about something that has been making you upset or unhappy
You've been a little cold to me lately. Is there something you'd like to get off your chest?
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Main Entry: ↑chest
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ˌget sth off your ˈchest idiom
to talk about sth that has been worrying you for a long time so that you feel less anxious
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Why not tell her how you feel? It might do you good to get it off your chest.
Useful english dictionary. 2012.