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| Date: | 1400-1500 |
| Origin: | up so down 'up as if down' (14-16 centuries) |
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upside down1
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.
To get the plant out of the pot, turn it upside down and give it a gentle knock.2
turn something upside down
a) to make a place very untidy when you are looking for something : The burglars have turned our house upside down.
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 down
the story of a young girl whose life was turned upside down3 disorganized or untidy
