A floating unit of measure used in determining a players damage per second.
Where the higher the number of esheons, the better performance.
Man, I suck. I was only able to do one esheon on that last pull.
An encounter, either digital or real, designed to filter the good from the bad.
Most commonly associated with video game dungeon encounters, in which "Boss" mechanics require a player to actually think, and/or not be afk.
Heroic Stonecore is a serious Fail Filter.