Top Definition
Euphemism for preforming oral sex on a woman.

Specifically to lick from the bottom of a woman's labia upwards towards her clitoris.
Mark went 'Hiking the Appalachian Trail' much to the delight of his mistress.
by Sanford and Sin June 25, 2009
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Sneak away to meet your mistress. ("Hiking the Appalachian Trail" is the first explanation of where South Carolina Gov. Mark Sanford was when he disappeared.)
"Has anyone seen Jawann? I've been calling and texting him for three days and he's not answering."

"Uh, he's hiking the Appalachian Trail."

"Oh. Got it."
by Frankie Fiveangels June 26, 2009
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Refers to someone's infidelity
"Did you hear about Mark's divorce? He was caught hiking the Appalachian trail."
by dcwedge June 26, 2009
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v. To carry on an extramarital affair.
Governor Sanford can't meet with you today; he's "hiking the Appalachian Trail."
by SkidMarkyMark June 25, 2009
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To be unfaithful to one's partner e.g. in an extramarital affair. Named after South Carolina Governor Mark Sanford, who was said to be hiking the Appalachian Trail, when actually he was visiting his mistress in Argentina.
"My husband has a lot of "meetings" and "conferences" to attend to lately. I think he might be hiking the Appalachian trail."
by wordanista July 04, 2009
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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.
by RadINTP June 25, 2009
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