The CEO of McDonald’s was ruthlessly mocked across social media after posting a viral video of himself struggling to chomp down on a new super-sized menu item — which he oddly called a “product” — at the fast food chain. The clip posted to social media last month shows McDonald’s CEO and Chairman Chris Kempczinski reluctantly trying the new “Big Arch” burger, which will be released in the US on Tuesday. “I love this product, it is so good. I’m going to do a tasting right now, but I’m going to eat this for my lunch, just so you know,” Kempczinski tells the camera.