Swedish Warship Barcodes

Listen up, you chucklehead. You probably think barcodes are just for grocery stores, huh? Well, get this: warships don't use them for milk and bread. They use them for, get this, a pun about being "Scandinavian" when they come home. You're probably still scratching your head, but it's a play on words. The barcode thing was just to make it sound legit. You might need to go back to kindergarten if you don't get it.