Someone who is black and into actual emo music and it's sub-genres (emotive hardcore,
hardcore punk, skramz and maybe indie or alternative like Sunny Day Real Estate and The Promise Ring). These people most likely know what they're talking about and won't label themselves "emo" because it's just a genre of music (and an insult when the term originally came about).
Most people think "emos" or what is actually emo pop punk (people who listen to emo pop punk /
alternative rock / pop punk bands) like early My Chemical Romance, Paramore, Fall Out Boy and Panic! at the Disco are all
privileged white kids and that seems to be the case, but you can have different races being apart of the subculture / sub-genre as well. It's just more popular in Western countries because that's where the genres originated.
Person 1: Look at her!
Person 2: Yeah, she's a black emo. They're rare, but they're out there.
Person 1: I wonder if she likes Dag Nasty.
Person 2:
Probably not, probably
one of those pop punk kids opposed to someone who likes
emotive hardcore.