A verb describing the small but strong population of people who love emo music, but also love other kinds of music as well. Mainstreamo people listen to Hawthorne Heights, The Used, My Chemical Romance, Senses Fail, Taking Back Sunday, etc. They do not paint their fingernails black, pierce their faces multiple times, die their hair, have lame haircuts, wear their belts with the buckle on the side, wear girls jeans, or sulk all day. You can love emo music and feel down sometimes without being full fledged "emo".
Max loves Hawthorne Heights, especially when they scream. He appreciate's when someone is that passionate about what their for, but that doesn't mean he's going to write sad poetry and tatoo the Used Heart on his arm. Max is Mainstreamo.