According to Jim Recap: Secret Santa
It's Christmas, and that means just one thing - since Dana doesn't have a job, she must have found herself a new credit card so that she can buy everyone gifts this year! Though it seems that she doesn't like it when Jim points this out to her, because she gets really upset. In fact, she's so upset that Cheryl says that it is okay if she puts her name on one of the Christmas gifts that she bought for Jim - just make sure to put it on the big box with the green bow. Dana brightens up and goes out to put her name on the gift.
When it comes time to open presents, however, it seems that Dana didn't do what she was told. She put her name on the smallest gift - an envelope - thinking that it contained a gift certificate or something. But it didn't. It held an 11-game pack of tickets to the Chicago Blackhawks, and Jim couldn't be happier (Andy, meanwhile, it ticked off).
It stays under wraps for a day or so, then Cheryl spills the beans, but she tells Jim that he can't tell Dana that he knows, because doing so would break the husband-wife bond, and she already broke the sister-sister bond by telling him. That lasts about a minute, and he tells Andy, who is told he can't tell anyone, or that would break the guy-guy bond, and he can't do that. Of course, Andy is a moron, and he tells, so then everyone knows and Dana feels horrible.
But to make it all up they have a lovely toast around the table and tell Dana how wonderful she is, and follow it up with how badly Andy picked his presents this year.
