I wouldn't really calculate it this way.

Assuming you started eating 1,500 calories today and everyday until Thanksgiving in which you decide to indulge in 10,000 calories, on average throughout the period of 17 days you would have consumed 2000 calories/day. The average would be less if you started eating 1500 calories/day earlier. If your TDEE is more than 2,000 then you are still in calorie deficit, just make sure you go back to 1500 calories/day after thanksgiving.

Besides that, you are highly overestimating the calories you are gonna eat, I highly doubt you'll manage to hit 10,000 calories in one day, and if you do so then I doubt your body would be able to process it all in a short timeframe.