A fork of Rural Dictionary
To have a sexual encounter or affair, named after the infamous disappearance of South Carolina Governor Sanford, originally thought to be hiking the Appalachian Trail, but was having an extra marital affair in Argentina.
I wanted to Hike the Appalachian Trail in the back seat of my dad's Lincon after prom, but my date wasn't drunk enough.
Refers to someone's infidelity
"Did you hear about Mark's divorce? He was caught hiking the Appalachian trail."
Making a long-distance clandestine trip for purpose of an extramarital affair
If you can't find me next week, I"ll be hiking the Appalachian Trail.
A poorly executed secret tryst - that isn't a secret to anyone. It is a reference to the disappearance of South Carolina Governor Mark Sanford who "disappeared" for a week to Argentine on a romantic escapade. His staff and office told the news media that he was "hiking the Appalachian trail."
Dave needs to take a break from hiking the Appalachian trail with his secretary and get some work done!
Going AWOL on your job to have a clandestine affair.
"Where has Joe been for the last three days? He didn't tell us that he'll be taking time off!" "Uh... He's hiking the Appalachian Trail." "Oh. In that case, where's the pink slip?"
"Hey, where did our governor go?" "He told me he was hiking the appalachian trail..." "Hope he takes protection."