A type of failure in World of Warcraft that is impossible, but yet still happens, because the person or persons responsible, are just totally uber suck.
Llaith, a level 80 DK was /gkicked after doing a Guild Achievement run in Kara, he wiped the group on Chess. EPIC FAIL!!!
A group of 2000+ WH rating geared raiders attempted to do Naxx 10, but after 3 wipes before Noth on trash, and 5 wipes on Noth, the group fell apart. EPIC FAIL!!!
One epic fail is the worst OS ever coded, one epic fail is the worst director to ever film, and the biggest epic fail is the worst person to ever live.
Something that failed so criminally, that it is considered tragic and inescapably humiliating to the fail-er. Good for a laugh, though, and often times enjoyment is found out of making fun of it.
The literature that was the fourth book in the "Twilight" Saga - "Breaking Dawn". The epic fail of Breaking Dawn succesfully caused pandemonium of the highest caliber to befall the entirety of the Twilight fandom.
A term made famous by a Jew with more nicknames than ever thought of. It is usually put to use when describing someone/something that just can't do anything but lose/error/suck/etc.
Guy # 1: I just took your Bishop!
Guy # 2: Dude that was my Knight! You are Epic fail!!!