1)the word "scene" can refer to anyone who's into a particular type of music, usually emo, screamo, hardcore, metal, maybe indie, or punk of some sort, and the "scene" around it.
It is often used to refer to kids, mostly between the age range of 14 and 24, who listen to these types of music. Stereotypically, these kids have short often dark hair, often chopped up or hanging around their faces. They tend to go to a lot of concerts and listen to their favorite bands a lot. They often listen to small, obscure, or local bands no one else has ever heard of. They may also maintain a myspace where they often will post pictures of themselves. This whole movement used to be counter-culturish but now has become mainstream to a point. Some people tend to make unfair judgements about scene people, and while some of them could very well be jerks the majority of them probably aren't.
2) the culture and group of people surrounding a style of music
1) That kid goes to a lot of concerts. He's definitely scene.
2) The punk rock scene has gotten kinda stale lately. Too many of these bands sound the same.
By killerfiller