A far cry is the distance between two people that which one can still hear the other.
An audible distance.
Princeton has a definition that dictionary.com does not (wordnet.princeton.edu/perl/webwn). Although there is a popular videogame named Far Cry, it is indeed a normal English phrase already/as well.
Country singer Tracy Lawrence also has a song "Far Cry from You."
Jim:"Where's Bill? He went out a long way, he hasn't been back for a while, is he lost or somethin'?"
Tom:"Nah, he's only a far cry from here, I heard him holler a minute ago, hehe."
A game with a wonderfully realistic world, where you can repair cars with a screwdriver, cure bullet wounds with a syringe, where checkpoints you blow up have magically been rebuilt when you pass there again (all the people there are reanimated, too).
Seriously now, despite these things being true: it's an FPS made by Ubisoft Montreal, and despite the name it has NOTHING to do with Far Cry, the game by Crytek.
Person 1: "Hey, you said you knew how to fix cars!"
Mechanic: "Yes, I do. In Far Cry 2 at least."