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Reckon that's not possible? Well, feast your eyes on this, my friends.
That's 38 minutes and 15 seconds, to be precise.
In that time, Chestnut - who has more than 50,000 subscribers tuning in to his filmed feasts - consumed no less than 15.36lbs of burgers and 18,016 calories.
Bloody hell, those are some numbers - especially when you consider that the weekly calorie intake of the average male is only 17,500.
If you watch the full 13 minute long video, you'll see that it looks like something of an ordeal. By about five minutes into the attempt, he's sweating buckets and starting to look a little bit like he's no longer enjoying himself.
However, he hadn't bitten off more than he could chew, as he powered on through to set what must surely by a world record.
Although official confirmation is tough to find, some reports suggest that the previous world record was 30 Big Macs.
That means that he's easily coasted past that and into the history books.
In the description of the YouTube video documenting this herculean feat, Chestnut wrote: "Since being a kid, I've dreamt about eating as many Big Macs as I could.
"As the ultimate cheat day event, I ordered 32 Big Mac sandwiches from Uber Eats and recorded the experience. According to McDonald's, the Big Mac features two 100 percent pure beef patties and Big Mac sauce sandwiched between a sesame seed bun.
"It's topped off with pickles, crisp lettuce, onions and American cheese for a 100 percent beef burger with a taste like no other."
"I remember being a little kid and they would sell two Big Macs for $4 and me and my grandpa would get four of them. I'd end up eating three.
"And this is bringing me back to being a kid. Me and my grandpa would go back to the same McDonald's every time.
"And it's crazy, when I drive by that McDonald's I still kinda just think about it. I think about all the times I was there with my grandpa and it's weird the way that food takes you back and helps you remember things. With Big Macs, I definitely remember my grandpa."
He continued: "I ate 32 Big Mac in 38 minutes, 15 seconds. The meal is equivalent to 15.36 pounds and 18,016 calories.
"I'm still amazed at how good the Big Macs tasted. It's so much easier to eat a food that you're familiar with and your body just already knows."
Outside of beasting burgers, Chestnut's bread and butter - if you'll excuse the tired pun - is eating hot dogs.
He holds a record for eating 74 hot dogs in 10 minutes back in 2018, and has won 12 out of the last 13 editions of Nathan's Hot Dog Eating Contest, which is sort of the Super Bowl of hot dog eating.
Chicken wings are also no match for Joey's appetite. He also holds the record for eating 413 Hooters chicken wings in 12 hours, on - fittingly - National Chicken Wings Day.
Probably don't try any of this at home, please.
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