make a clean breast of
US /meɪk ə kliːn brest əv/
UK /meɪk ə kliːn brest əv/
1.
to confess fully, especially about something bad or illegal that one has done
:
•
He decided to make a clean breast of it and tell his parents about the broken vase.
•
It's better to make a clean breast of your mistakes now than to let them fester.