Question

Keep your chin up and I hope you break a leg! It only happens once in a blue moon. What does this idiomatic phrase actually mean?

1. Look upwards and keep smiling. It only happens once every month.
2. Stay positive and I wish you good luck! It hardly ever happens.
3. Stop talking and I hope you have lots of fun! It only happens once every year.
4. Don’t stare at the ground, I wish you would fall over! It happens all the time.

Answer 1

no 4. Don't stare at ground, I wish you should fall over! is the perfect meaning