Eric 'Badlands' Booker Reveals Dream Chugging Beverage

Eric "Badlands" Booker has chugged just about everything under the sun ... but there's still one liquid he REALLY wants to down at an insane rate -- telling TMZ Sports it's a drink you can't find just anywhere!!

We caught up with Booker as he prepares to defend his title at the Nathan's Famous Lemonade Chugging Contest this July 4 ... and he revealed a non-alcoholic apéritif called Beverly -- a Coca-Cola product -- is atop his wish list.

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"I think it's from Italy or somewhere in Europe," he said. "There's only one place that I know has it, at the Coca-Cola factory down in Atlanta. So one day, I'm gonna bring my boot and just put it under…