it's whenever a hooker and or a loved one with bad yellowish teeth gets a cumshot in the mouth, and then proceeds to slosh it between thier teeth and spits it out, leaving the cum thick and yellow like butter.
"dude, did you see cindy?", "Yeah man that slut had hooker butter all over her shirt"
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.