Short for Early Onset Senioritis. It typically occurs during the final few weeks of a high schooljunior's life, however it is not unusual to see some cases that begin after the second semester has begun.
Symptoms include fatigue, lack of motivation and at times narcissism.
See senioritis.
Junior 1: It's so sad that all our senior friends are graduating
Junior 2: Isn't it?
Junior 1: Did you study for Smith's test?
Junior 2: Nah, I'm suffering from EOS
Killer dubstep producer, even tough he isn't well known he is much better then justin bieber and as soon as his remix of we found love is authorized..... justin bieber is finally dead
Serisouly? Justin bieber should of been dead years ago
"End of Service" or "End of Support". It means the developers have deemed the software or software-as-service benefits themselves less than the community that supported it, and are now washing their hands of you goddamn swine. Oh, but please buy our sequel!
ShitUp announced an EOS for DC. But at least they promised us a virtual afterparty!