A radio broadcaster that discusses subject matter and/or use language that can be considered controversial and/or offensive to one or more social groups soley in an effort to get a reaction from one or more social groups.
A Disc Jockey for a radio station who specializes in shocking, disturbing, and disgusting radio bits. Popular examples include Opie & Anthony and of course Howard Stern.
A radio or television personality who lowers his content to the lowest common denominator ( gutter level ) for the sole purpose of insulting, exciting, or inflaming people for attention or ratings.