A barcode consists of a series of lines that are differing widths and patterns that can create a code that can be read by a tool called a scanner. Jun 14, 2021 - The barcode tattoo has gained popularity, and you are now more likely to see a person with a barcode as part of a tattoo collection. Jun 11, 2021 - The barcode tattoo has gained popularity, and you are now more likely to see a person with a barcode as part of a tattoo collection.