to sit and sulk about ones love life while cranking winey emo music.
Sarah stood up Steve, so Steve decided to go home and emo out.
To Emo Out: The act of being horribly depressed; serious for a specified amount of time. To listen to sad music, watch serious television shows/movies about death, thinking bad thoughts.
Past Tense: Emo'd Out
Jake: I think I'm just going to emo out for the weekend and think about life