turn something inside out
turn something inside out1 turn the inner surface of something outwards. 2 change something utterly.
2 2002 New Republic My every preconception about Renaissance tapestry had been turned inside out.
turn something ˌinside ˈout/ˌupside ˈdown
1 make a place very untidy when you are searching for something: I’ve turned this drawer inside out but I can’t find my passport. ♢ The thieves turned the office upside down but they didn’t find anything valuable.
2 cause large changes: The new manager turned the old systems inside out.