Hamburger Brains QR Code, Short-Sleeve Unisex T-Shirt

Hamburgers and brains. What is the relationship between the two? Are hamburgers bad for my brains or is there maybe brains meat in my hamburgers? And what has the QR code to do with it? Is it perhaps a discount code for a new kind of hamburger or something completely different like an entry code to a database where are my medical records are being stored?  Product Details This t-shirt is everything you've dreamed of and more. It feels soft and lightweight, with the right amount of stretch. It's comfortable and flattering for both men and women. • 100% combed and ring-spun cotton (heather colors contain polyester) • Fabric weight: 4.2 oz (142 g/m2) • Shoulder-to-shoulder taping • Side-seamed Model is wearing a size M. He's 6.2 feet (190 cm) tall, chest circumference 37.7" (96 cm), waist circumference 33.4" (85 cm). Size guide   S M L XL 2XL Length (inches) 28 29 30 31 32 Width (inches) 18 20 22 24 26