Something that has become so made fun of, with people that scrape their arms on tree branches and are consequentially called "emo," that those who are in serious, self-harming trouble are passed off as simply "emo" instead of majorly or manically depressed.
Person 1: Aha ha ha you are emo you cut your wrist!
Person 2: On broken glass, dumbfuck.
Person 1: HE'S EMO!!!