Definition of upside down
- turned their world upside down
You hung the picture upside down!
To remove the plant, turn the pot upside down and tap gently on the bottom to loosen it.
The baby was holding the book upside down.
First Known Use: 15th centurySee Words from the same year
What made you want to look up upside down? Please tell us where you read or heard it (including the quote, if possible).