The phrase good luck is considered bad luck only in theaters, so go ahead and use it everywhere else. What is the proper ...

Here's how the phrase became the ultimate good-luck charm. When we say "break a leg", we don't actually want people to break their legs. So, why do we say this interesting phrase in the first place?

The phrase could also come from the idea of race horses "breaking their legs" (AKA how they're standing) at the starting line, which some riders believed was good luck and would lead to a good race.