A possible concise summary is:
Two YouTubers, Nikocado Avocado and Hungry Fat Chick, visit the Heart Attack Grill in Las Vegas, a restaurant that serves extremely high-calorie burgers, fries, shakes and drinks. They wear hospital gowns and get their food served by nurses. They try to eat as much as they can, but they fail to finish their meals and get spanked by the staff. They also chat about their lives, their weight, their pets and their fans. They enjoy the experience and promote each other's channels.
Here are the key facts extracted from the text:
1. The text is a transcript of a video where two people visit the Heart Attack Grill in Las Vegas.
2. The Heart Attack Grill is a restaurant that serves very high-calorie burgers, fries, milkshakes and alcohol.
3. The restaurant has a hospital theme and the customers have to wear hospital gowns and get weighed on a scale.
4. If the customers weigh over 350 pounds, they can eat for free.
5. If the customers do not finish their food, they get spanked by the staff with a paddle.
6. The two people in the video are Hungry Fat Chick, a YouTube personality, and Nikocado Avocado, another YouTube personality and her guest.
7. Hungry Fat Chick orders an eight-patty burger with 40 slices of bacon and 20,000 calories, and a chocolate butterfat shake with vodka.
8. Nikocado Avocado orders a four-patty burger with 20 slices of bacon and 10,000 calories, and red wine in an IV bag.
9. They also share chili cheese fries cooked in lard.
10. They both get spanked at the end of the video for not finishing their food.