This is a term used by dimwitted urbanites I've spoken with to describe the activity most people call "hiking ".
Tony : Me and my girl went camping up to the mountains the past weekend camping for 2 days
AJ: Did you guys do any forest walking?
Tony: ahhh, do you mean hiking? If so then yes.
AJ : oh yeah, I think that's what it's called!
Tony: yeah, it is. DUMBASS