When a person reminisces about or uses things from the past, could also be seen as nostalgiafagging.
Jane: I'm using Windows Vista on my computer. I miss when operating systems used to actually be good and have nice design, everything is so boring now.
Karl: Hey guys look at Jane, she's once again waybacking again.
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 $2million.