The manly art of going out the week before Christmas and buying yourself a gift that you really, really want thus causing your friends/family to return the one that they bought you that you hadn't opened yet.
Him: "So I really wanted a new leather coat and I saw this on a Christmas Eve sale and bought it for myself. It's my way of Christman shopping"
Her: "I guess the one that I bought for you can go to the homeless shelter for Christmas. At least they'll appreciate it"