Oh screw that!
Once you know how to lose fat/weight, it becomes a non-issue. Over the course of 1 day (Christmas) I'd be hard pressed to overeat by more than a few thousand calories, and that's if I'm really going at it.
To lose an extra 1-2LBs fat is a non-issue imo.
The only thing I'd say is to keep up the intensity on the gym. It will help to direct some of those excess calories towards building muscle and replenishing glycogen rather than going straight to fat stores.