Poseur

Poseur is a pejorative term, often used in the punk, heavy metal, hip hop, House and Garage music, grunge and goth subcultures, or the skateboarding and surfing communities, to describe a person who copies the dress, speech, and/or mannerisms of a group or subculture, generally for attaining acceptability within the group or for popularity among various other groups, yet who is deemed not to share or understand the values or philosophy of the subculture.