Term used for any droppedcall, unsent text message, or frozen application as a result of the disaster that is the iPhone and AT&T network.
Griff:"Damn, I can't get those naked pictures from Theresa because she has no service on her iPhone.''
John: ''What an epic iPhail. Wow, Miley Cyrus is coming to the Garden? We are there."
Often used as an excuse for not texting back or hanging up the phone mid conversation because you don't want to talk to the other person.
I thought he liked me we really hit it off but every time i call him it disconnects, I think he iPhailed me. I've exhausted all options, time to turn lesbian.