Some one who fails on an epic scale. Constantly.
A group of people that fail. Constantly.
A retarded looking alien. EPIC fail.
"look at that chick, shes such a failien"
"Dude, stay away from those failiens, they'll make you one of them"
"That was such a failien, he didnt even have green skin or tentacles or anything like a decent alien. waste of a movie"