1 definition by 7upp
God Damn Individual. Used in the U.S. Army to denote someone who refuses to take orders and does whatever the fuck they want to the chagrin of their unit. Especially used in Basic Combat Training (BCT) where Drill Instructors attempt to turn a shit-ton of diverse recruits from different backgrounds (GDIs) into one cohesive functioning military unit. But there's always the one fucktard who doesn't give a fuck and will do whatever they want and will always be a GDI.
"Yo G, that fucktard doesn't give a fuck. He just made our whole platoon do 200 pushups by being a retarded fuckup. What a GDI. Let's throw him a blanket party tonight."
by 7upp December 31, 2010