get something off one's chest

/ɡɪt ðə ˈdɜːti ˈwɔ.təɹ ɒf wʌnz t͡ʃɛst/

vider son sac, dire ce qu'on a sur le cœur

“It is healthy to get something off one's chest.”

Il est sain de vider son sac.