GY6
GY6 means "got your 6" as in "got your 6 o'clock" like "got your back"
Friend says to another friend: "GY6, Buddy."
Friends responds: "Got your back too."
Friends responds: "Got your back too."
GY6
GY6 is short form for "got your six" like "got your six o'clock". It is another way to say "got your back".
Friend: "GY6, Buddy."
Reply: "I got your back too."
Reply: "I got your back too."