For one to spill one's guts is to make a babbling and unconcise statement or speech that is so diluted with bullshit/assfacts/nonsense that it resembles non-projectile vomit:- the infectious material or foreign body is dismissed along with plenty of internal material that is not wanted.
Don't spill your guts on the best man's speech like you did at the rehearsal, and don't get drunk until you've made it.
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.