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20.
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 24, 2009
12 25
 
1.
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
1207 170
 
2.
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
542 52
 
3.
Refers to someone's infidelity
"Did you hear about Mark's divorce? He was caught hiking the Appalachian trail."
by dcwedge June 26, 2009
314 76
 
4.
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
265 64
 
5.
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
190 24
 
6.
cheating on your spouse
I was out "Hiking the appalachian trail"
by Spartan1986 June 30, 2009
154 32
 
7.
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
195 75