It's Guy Code Men's T-Shirt - From The Show Jersey Shore. Jersey Shore he has become more popular then ever! "It's Guy Code" Jersey Shore quote t-shirts have been in high demand. Be sure to never break the rules of "It's Guy Code". No grenades and Bro's before General Humans! Jersey Shore has grown to be a huge hit and in celebration of the show's success we are proud to offer you this line of shirts that feature some of Jersey Shore's most infamous sayings. These shirts will make you an instant party animal... if you can handle it.