Short for Early Onset Senioritis. It typically occurs during the final few weeks of a high school junior'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
by NotMarkTwain May 11, 2012
Get the EOS mug.
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

Look up we found love dubstep eos
Justin bieber: oh shit, i'm dead

Skrillex: i'll take EOS's remix off soundcloud

Justin bieber: thanks

everyone else: EOS will kill you two!
by EOS4life December 18, 2011
Get the EOS mug.
End of Sentence, maximum length a person can be held in prison
When is your EOS date. I EOS in 30 days.
by Vitriolic X January 7, 2011
Get the EOS mug.
"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!
by enkephalin07 August 19, 2023
Get the EOS mug.
1. A cult of wizards which search continuously for Hogwarts as a new regrouping spot through out the wilderness.

2. An illegal activity involving botnets
1. I wonder if EOS have found that new regroup spot yet? Tankhive2 appears to be really getting heated using unforgivable curses on his Future EOS applicants.

2. Did you hear that EOS_Oli sold his car to drop the Teamspeak server of honourable people?
by Albus Dumbledore the third November 22, 2010
Get the EOS mug.
Eos is, in Greek mythology, the Titan goddess of the dawn, who rose from her home at the edge of Oceanus, the Ocean that surrounds the world, to herald her brother Helios, the sun. The Greek worship of the dawn as a goddess is believed to be inherited from Indo-European times. The name Eos is cognate to Latin Aurora, to Vedic Ushas.
by ♫ Highway to Hell ♫ August 4, 2010
Get the Eos mug.