"Epic fail" vs "Epic failure"

[SuperMillionaire]

http://www.slate.com/articles/life/t.../epic_win.html

In internet slang, a "fail" is basically a mistake or something gone wrong, and an "epic fail" is a extremely bad mistake, or something gone extremely horribly wrong. In proper English, the word is used in a grammatically incorrect manner; "to fail" is a verb, but it is used as a noun, even though the grammatically correct word would be "failure."

While the use of the term "epic fail" is more common, I've noticed some people, less commonly, use the grammatically correct term "epic failure." Keep in mind that between the two, the latter was used first; references to the meme date as far back as 2003, but it was not until the end of the 2000s and the beginning of the 2010s when it became prominent. Initially, the words "fail" and "failure" were still used in the grammatically correct manner, and gave rise to the term "epic failure," which later evolved into the grammatically incorrect "epic fail."

Also in internet slang, the opposite of "fail" is "win," though in grammatically correct English, "fail" and "win" are not antonyms (the official term for opposite words); the opposite of "fail" would be "pass," and the opposite of "win" would be "loss" or "lose."

Thus, the usage of the word "fail" in internet slang is a grammatical "failure" in itself.

Which word do you use? "Fail" or "Failure?"