Hiking in Appalachia 

To have an extramarrital affair. Stems from the disappearance and subsequent reappearance of South Carolina Governor, Mark Sanford(R). Gov. Sanford was thought to be hiking in Appalachia. In actuality, he was having an affair in the South American country of Argentina.

Girl, I just saw Susie's man hiking in Appalachia.

Hiking in Appalachia by Chatnoir80 June 24, 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 in the Appalachians 

Euphemism used mostly by politicians for spending time with a South American mistress, most commonly Argentinian.

Sorry I didn't call, dear. I was busy Hiking in the Appalachians and couldn't get phone service.

Hiking in the Appalachians by capt. planet June 24, 2009