Complete and total failure when success should have been reasonably easy to attain.

A jack off buddy (from 'cum' /'come', meaning 'semen', and 'companion'); a friend that you get together with for sessions of solo or mutual masturbation
Variant of: cumpanion (from 'companion' & 'cum'); jack off buddy & wank bud & JO buddy
Similar to: fuck buddy

Epic- Anything great, spectacular, or large/monumental in nature

Fail- An inability to complete an objective, task or job either assigned or volunteered for.

Epic Fail -A mistake of such monumental proportions that it requires its own term in order to sucessfully point out the unfathomable shortcomings of an individual or group.

When something can be seen to be a total failure

A Fail So Hard That One Only Witnesses It Once In Life Time.

The highest form of fail known to man. Reaching this level of fail means only one thing:

You must die, or the world will fail itself due to such an extreme level of failage.

An epic fail is like the God of all failures. Nothing can fail more then that.