Makes a clean breast of British verb
Tim finally made a clean breast of it and admitted that he had stolen the watch.
Linda felt so guilty about cheating on the test that she made a clean breast of it to her teacher.
The director had made a clean breast of all company's recent problems.
Confessing your sins is a good way to release stress and guilt.
An offender's sense of guilt and regret can be so strong that they will confess even if no one is requiring them to do so.
1. If you spill your guts, you reveal everything you know to someone in a truthfull way.
2. If you spill your guts, you vomit violently.
To tell someone something that you have been trying to hide.
The phrase starts with a "verb", so we need to be careful about "subject-verb agreement".
In 1752, the phrase 'make a clean breast' is first recorded in The Scots Magazine:
"He pressed him... to make a clean breast, and tell him all." In this situation, the 'breast' doesn't mean 'the two soft protuberances situated on the thorax in females'. It refers to the source of one's emotions and secrets.