This is how I got into this whole weight gaining/stuffing thing to begin with. I was lifting weights and drinking a heavy protein shake that I couldn't really stomach, but watching the opposite sex chug helped. The first few months I could barely finish the 48 drink, in a month or so I'd follow it with another 48 ounces of water for best absorption. But this was 15 years ago when I was into building muscle.
It's kind of like a workout for your stomach. You'll need a few warm up meals. I'd try filling up with water hours ahead of time, you can use watered down gatorade if your worried about the over hydration, which is scary so...
Then variety helps you keep eating. Vary your choices, think thanksgiving vs a pizza, you'll always eat more with more variety.
Load your plate, the bigger the pile in front of you the more determined you will be to make it all go away.
Then about 20 minutes later try a brownie and a big glass of milk or if your trying to gain weight too cream or even half and half.
5 years