an emo quit is when, a bit like rage quit, you quit a gathering or conversation because you are out of words and/or have been seriously humiliated.
emo quitting is most seen in movies, when the main character is sad or angry, and is slamming the door behind him.
- omg did u just see mike?
- yeah, he just totally emo quit cause is girlfriend left him
- omg, fuckin n00b