It's just too easy. I know no one outside of family will know what this means. It's a traditional thing every Christmas for us and I usually win. The point is to be the first one to say or convey the words "Christmas Eve Gift" on Christmas eve to get an early gift.
One year my brother snuck over to my house in the middle of the night and wrote "Christmas Eve Gift!" in huge letters all over my car door. He knew I'd be in it early the next morning on Christmas eve and would see it first thing. That was a good one. After that I didn't let much get by me and have usually gotten everyone else first. It's just one of those silly family traditions but we have fun with it.