What does Break a leg mean?

“Break a leg” meaning: “Break a leg” is a phrase that means “good luck.” It’s typically said to actors before they go on stage for a performance, particularly on opening night. It’s not limited to performers, though; you can say this phrase to anyone. Here are some examples of how to use it in a sentence: “I can’t wait to see you perform tonight—break a leg!” “I hear you have a big presentation at work tomorrow—break a leg.”