Agg simply means cool. But in reality it means much more, agg is more than cool. Agg is not just how players dress or stand behind their bunker, it's also an attitude they bring to the field. A perfect example of this is Kenny Rosenberg (former Legacy now HK player) he brings not only fashion sense, but a magnetic attitude onto the field.
Some players dislike HK/Agg because of it's "overusage" or "poser fan following". Regardless, it is a word that will forever represent this era of paintballers.
First orginated from just going 'Arghh' and drooling, which has turned into a real word since.
/b/roski 1: hey guiseze, check out ma ion
/b/roski 2: Damn, that guy is AGG!!
/s/ister 1: Damn, check out that rasta hat!
/s/ister 2: Fuck me, that's agg!