Code used by persons who claim to be participating in vigorous, solitary outdoor activities to escape stress when in fact they are carrying on hot and heavy clandestine affairs in foreign countries (preferably located in South America).
On Saturday, Jenna tried six times to get in touch with her boyfriend, Mike, but he had already told us he was hiking the Appalachian Trail this weekend so we knew his phone would be off.
by SCtransplant June 25, 2009
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A euphemism for a mysterious disappearance as a result of illicit activities.
Disappear for a few days and need an explanation? "Sweetie, I was just 'hiking the Appalachian Trail!'"

Boss asking for a note on why you were out for a four-hour lunch with his wife? Yep, you guess it - you were out hiking the Appalachian Trail!

See also Sanford, soon-to-be-former Governor of SC.
by thecovert June 25, 2009
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To have an affair with a woman/multiple women, preferably from Argentina. Email is the main form of communication, although in this case, an actual visit is needed.
Press: Where is Sanford?

Joel Sawyer, Sanford's spokesperson: Uhh...He's... Hiking the Appalachian Trail...Yeah, that's the ticket.
by kneenuh July 13, 2009
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For a man to have vaginal sex with a woman who is not his wife. Can be used as a reference to a married man having an illicit sexual affair, and deceiving everyone about it by telling them he's doing something else.

"The Appalachian Trail" refers to the woman's vagina.

Mark Sanford, the Governor of South Carolina, flew to South America to see his mistress and told everyone, including his staff, that he 'would be gone for a few days hiking the Appalachian Trail.'
"Does Bob's wife know he's taking that hot secretary with him on his business trip? Looks to me like he's planning on hiking the Appalachian Trail."
by impulsiveone July 16, 2009
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To say you are doing something/anything other than what you are actually doing at the time. A lie to avoid embarrassment or repercussion.
Gov. Sanford of South Carolina was reportedly "hiking the appalachian trail", but in reality was shackin' up in Argentina. On Father's Day to boot!
by Beach Rhino June 25, 2009
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A pharse used to describe an extra martial afffair that you are hiding but are really out of the country.
The governor of SC was hiking the Appalachian Trail this weekend.
by philipc76 June 25, 2009
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Any cover story a politician or other person of power uses when cheating on that person's spouse.

From the disappearance of Gov. Mark Sanford in 2009.
What happened to the senator this weekend?

He's off hiking the Appalachian Trail *wink*
by Colby B. June 24, 2009
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