Emo Flu
An illness suffered the day after going to a concert or music festival, especially Warped Tour, in the summer. Contracted by drinking from community water cups and being in close proximity to large groups of sweaty people.
I think I got the Emo Flu from the community water cup being passed down from the front row yesterday. It was just so hot and I didn't want to lose my place to see the All American Rejects.