When you call someone and the only thing you say before hanging up is something you know will irritate them severely.
An example of cell phone bombing is calling up a friend who is deathly afraid of spiders and yelling "SPIDERS! SPIDERS, EVERYWHERE!!!" and promptly hanging up.
I cell phonebombed my brother, who is very OCD in his dislike for odd numbers, by calling, saying "I see sevens," and hanging up.
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.