I can't in good conscience just toss out old meat. For one it cost me money, and two, an animal was slaughtered for it. So I have come up with two uses for proteins more than a year old or otherwise not enjoyable for consumption.
One is dog food, thaw it and serve over next two days, no more, no re-freezing. If it's any type of meat that can be broken down (ribs, chops, steaks, etc), I will usually take a cleaver to the frozen piece and leave the rest in the freezer.
The second thing I found it useful for is seasoning pits. I've had enough friends buy pits that it went to good use. Throw it on some high heat and let that freezer-burnt meat spread the love. I guess it depends on how you season your pit, but this has served me well.