The feeling of an obscure, distant, detached and almost non-existant memory, and you could almost describe this feeling as nostalgic, but something more than that (like how Deja Vu is a feeling like you've seen something before, except it is more than that). This is often triggered by viewing a building or room with a certain pattern or color. It is one of those feelings that we cannot convey with any form of language.
I felt 'ophorne' when I was exploring caves in Minecraft, I walked into a certain cave, and the way it looked, I felt a certain feeling I just could not explain to my friends I was playing with, it was almost like an obscure, long-forgotten memory that I just couldn't grasp. Luckily my friends understood what I meant.
A Shackteau is a humble, weather-beaten, structurally questionable shelter located in a spectacular or highly coveted place—Wales, Jackson Hole, Sun Valley, Crested Butte, coastal Maine, the Alps—where the building itself may be worth almost nothing, but the dirt, view, access, and mythology make it absurdly valuable.
In use:
Shackteâu - We thought it was an abandoned shed until the realtor called it a rare alpine Shackteâu with unobstructed views and listed it for $2 million.