Always used with the pronoun "The", The Gobstopper is the name given to the oral sex technique of taking a cock and both balls, no matter the size, into the mouth and sucking/licking it all until it gets too big to handle it all and eventually letting the balls drop out of the mouth and regular oral sex is resumed.
So while he was soft, I decided to take his whole package, y'know his cock AND his balls, in my mouth and just suck and lick til he got raging hard. He was like "Wow! What was THAT?", a pleased look on his face. I simply replied, "That was The Gobstopper." Naturally, he followed up by saying, "Well, I want more of The Gobstopper then!"
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.