Hiking the appalachian trail 

cheating on your spouse

I was out "Hiking the appalachian trail"

Hiking the appalachian trail by Spartan1986 July 5, 2009

Hiking in the Appalachian Mountains 

Claiming you are going "Hiking in the

Appalachian Mountains" for vacation when in fact you are going away for a booty call.

Bob: Yeah, I'm burnt out. I'm going Hiking in the Appalachian Mountains for some R&R.

Frank: Dude, who are you kidding. I saw you and Sally from the copy room groping each other in the bar. You're headed to a Motel 6 for a few days

Hiking in the Appalachian Mountains by Langbo June 25, 2009

hiking the Appalachian Trail 

v. To carry on an extramarital affair.

Governor Sanford can't meet with you today; he's "hiking the Appalachian Trail."

hiking the Appalachian Trail by SkidMarkyMark June 25, 2009

hiking the appalachian trail 

Refers to someone's infidelity

"Did you hear about Mark's divorce? He was caught hiking the Appalachian trail."

hiking the appalachian trail by dcwedge June 26, 2009

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.

Hiking the Appalachian Trail by radgtr June 25, 2009

Hiking the Apps 

To have an extramarital affair.

See South Carolina Gov. Mark Sanford.

Bob: Oh shit, Mike's "Hiking the Apps" with Judy.
Jim: Damn!
Will: Go Mikey!

Hiking the Apps by Puddyfudge June 30, 2009

hiking the Appalachian 

A euphemism for having sexual relations.

"So, how did your date go last night? You hike the Appalachian?" or "I'm sorry, the Governor is not available. He's out hiking the Appalachian."

hiking the Appalachian by Call Me Mr. Gee June 24, 2009