Meaning: Good luck!
Origin: It is believed that the phrase dates to World War I Germany and a saying used by German actors “Hals- und Beinbruch” which translates to “a broken neck and a broken leg.” Besides that, it still doesn’t make sense why would you wish someone to break a leg? Well, as it turns out, popular folklore down through the ages encouraged people to wish others bad luck since it was believed that wishing someone good luck would tempt evil spirits. So, you guessed it, people started wishing each other to break a leg in order for them not to break one!