Idiom: to let the cat out of the bag = to reveal a secret: Trump Jr. let the cat out of the bag about how the entire Trump business empire was built on Russian money at a conference in 2008. #IdiomCards ━━━━━━━━━━━━━━━ ☞» @ProverbsIdioms ☞» @CambridgeWords ☞» @PhrasalVerbsIdioms ☞» @American_English_Club 1.9K views23:00