Well at least the language has been enriched.   If you want to do something and don't want to tell your wife about it, you just say: "Sorry, I'll be hiking the Appalachian Trail".

e.g.   "Sorry honey, I won't be able to clean out the garage this evening--I'll be hiking the
Appalachian Trail."

What? That may not have the desired result?


Well, at least guys can use it with each other:   "Hey Larry, haven't seen you for awhile.   Been doing a lot of hiking the Appalachian Trail?"