- upside down
- .upside 'down1 adv[Date: 1400-1500; Origin: up so down 'up as if down' (14-16 centuries)]1.) with the top at the bottom and the bottom at the top▪ To get the plant out of the pot, turn it upside down and give it a gentle knock.2.) turn sth upside downa) to make a place very untidy when you are looking for something▪ The burglars have turned our house upside down.b) to cause a lot of change and confusion in a situation or in someone's life▪ the story of a young girl whose life was turned upside down3.) disorganized or untidyupside down 2.upside 'down2 adjin a position with the top at the bottom and the bottom at the top▪ an upside down U shape▪ The chairs were placed upside down on the tables.
Dictionary of contemporary English. 2013.