stand something on its head
stand (something) on its head
1. To misinterpret or misrepresent something so that it is completely incorrect or the opposite of what it should be. I'm afraid we've stood the original mission statement on its head—this is the opposite of what we stand for. You just stood your previous statement on its head, and now you're contradicting yourself.
2. To innovate or alter something, such as a field or activity, in an unexpected or unprecedented way. He has stood fine dining in this town on its head with three words: hot dog soup.
stand (or turn) something on its headcompletely reverse the principles or interpretation of an idea, argument, etc.
stand/turn something on its ˈhead
1 turn something upside down
2 make people think about something in a completely different way: He stood the argument on its head, saying that the plan wouldn’t save money and would, in fact, cost more.