Definition of "emo"

(uncountable, music) A particular style of hardcore punk rock  examples

(countable) An individual of people associated with that subculture and musical style.  examples

(uncountable, music) Any form of guitar-driven alternative rock that is particularly or notably emotional  examples

(countable) An individual of people associated with a fashion or stereotype of that style of rock.  examples

(countable) A young person who is considered to be over-emotional or stereotypically emo.  examples

(often derogatory) Emotional; sensitive.  examples

(informal, often derogatory) Depressed.  quotations  examples

Associated with youth subcultures embodying emotional sensitivity.  quotations  examples