EPIC PHAIL
To fail so epicly you cannot just explain it using the word "Fail" But you have to say it "Phail" fail 

Also an antonym to EPIC, can be used as derogatory or as a compliment in Halo live
EPIC
1. John is such an epic phail he doesn't even know what he's talking about.
2. That was such an epic phail with the scarab gun he killed my entire team!