basically someone who is really, really rad or awesome. they are most often seen as better than rad people and better than hXc people
OMG that person is so radXcore, i wish i was them (points at radXcore person)
A lying hacking cheat who has been proven to have hacked and stolen currency from a website. Best known as a fat kid who sits around trying to harass many people via the internet and IMVU.com
Also known as a 3D developer wanabee.
Exium is a dirty little hacking son of a bitch who sucks at 3D development.