noun: (music) A genre of aggressive lo-fi guitar-driven music with predominantly screaming vocals, while preserving structural aspects of the emocore/hardcore emo genres of the early 1990's.
noun: (music) A genre of guitar driven music sometimes referred to as posthardcore, combining late 1990's emo indie rock with interludes of screaming vocals, often accompanied by hardcore or metalcore guitar riffs.
noun: (music) Any punk rock inspired music that involves screaming vocals, typically referring to the genres described above as well as certain subgenres of hardcore punk.