Unforgiven, or Surf-h UnForgiven, is new term, used to describe leet counter-strike players, that are especially good at surfing. They normally hang around in certain maps of source, such as leet_turbo and greatriver.
The sequel-song (In Reload) to metallica's "The Unforgiven".
The music video itself portrays a teen who has his hand and wrist stuck in a huge wall of stone standing by a cliff. At the end of the video, he sees the "Love" of his life, buries a key in her, and calls her unforgiven.
A somewhat good song IMO, at the same time one of the most saddening songs I've heard. Apparently, it deals with love itself, and in James Hetfield's case, "Forgiving no one and ending up alone."