mistakebutton
nounUK /mɪˈsteɪkˌbʌtən/
US /mɪˈsteɪkˌbʌtən/
A mistakebutton is a button you press by accident when you did not mean to.
I hit the mistakebutton and my game closed before I could save it.
OTHER MEANINGS
2. A button that fixes a mistake you made.
Press the mistakebutton to take back your last answer.
3. A pretend button kids press to blame someone else for a mess.
He tapped the mistakebutton and said the dog did it.
4. A spot on a toy that makes a funny error sound.
The robot beeped when she pressed the mistakebutton on its tummy.