Let's look at wish first of all. In your 'Merry Christmas' example, or when you wish someone good luck or Happy Birthday, you are expressing the hope that they will have good luck in the future ...

It's a way of wishing someone good luck. Let's explore where "break a leg" came from, what it means and how people use it today. "Break a leg" is a playful way of saying: "I hope you do great." ...

When wishing someone good luck, we often say that we’ll keep our fingers crossed for them – the middle and index fingers, specifically. But why? There are couple of theories about the origins ...

50 Common Idioms and What They Really Mean Despite sounding like something out of a medical drama, "break a leg" is actually ...