When faith is so cruel that it pwns you with the amount of fail that it provides given the circumstances. In other words, a massive fail that marks you for the rest of your life. The ultimate self-embarrassment.
Example 1: Masturbating in front of your laptop when you've forgotten the webcam on after speaking to your grandparents in Florida would be failage.
Example 2: Letting the girl you have a crush on download a torrent using your PC without thinking of deleting or hiding the collection of BDSM porn first would be an even bigger failage.
Often called "That guy" In the U.S. Army. This is the type of person who never wants to do PT, training, or any kind of real work. Does his best to sham in the army and collect a check. Basically a douche-bag.