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!!!