I don't think I could do it, but 3.5 cups of peanut butter would get you there. Or four 16 ounce ribeyes.
Moreover, you dont need to eat anywhere close to 5k to be morbidly obese.
1 cup of roast nuts over TDEE will gain you 100lbs in a couple short years
TDEE rises as body weight rises (heavier body burns more)
Overfeeding increases NEAT in some people (more fidgeting, movement)