Popcorn popped off -- 'cause world champ competitive eater Joey Chestnut just went kernel-to-kernel with his own record… and shocker -- he buttered it up and smashed it!
Yup, you heard right -- Joey went full snack attack at the South Terre Haute Rural King in Indiana this Memorial Day, where, according to the top popcorn pros, he inhaled 42 servings in just 8 minutes.
The man's been out-snacking himself for years -- 3 years ago, the Guinness Book of World Records confirmed Joey downed 32 servings of 24-ounce popcorn in 8 minutes .