my friends and I are from the swamps & bayous of Louisiana and went on a spa vacation to Arkansas and instead of spa vacation we'd cut it short and say spacation.
A vacation from a friend, activity, or location (e.g. bar, restaurant) due to committing a shame-inducing transgression (e.g. 86'd from a bar, making out with a friend's spouse). Typically lasts until one apologizes/settles the lawsuit to/with the aggrieved party.
Stan went on a shamecation from hanging out with Kyle after getting inappropriately drunk at his wife's birthday party and being thrown out of the restaurant for arguing with the Asian manager.
A high class vacation that quickly turns from caviar and champagne, to spam and colt 45. Named in honor of the Carnival Cruise ship Splendor which got sidetracked due to fire.
Our trip to Venice got cancelled, so instead we drove to El Segundo and just had a Spamcation
A period of time, slightly longer than normal, one goes without shaving. Ususally associated with the holidays and comes to an end in early January. Can be intentional or unintentional. In the common case of beards - the shavecation usually upsets a wife or girlfriend, and is often incorrectly mistaken for laziness.
Barbara: "Sheesh, you look like you've been on a month-long shavecation"
Walter J: "Don't worry boss, the beard will go at the end of my shavecation. See you next week"