Situation 1: When a girl is 'cock blocked' by her friend when that girl totally had dibs on the guy at the beginning of the night.
Situation 2: When a girl wants to nail a guy and she can't because the guy doesn't want to nail her. (similar to bluewalls)
Sarah has a crush on a guy at a bar and she tells her friend Lisa that she wants to jump his bones. Sarah and Lisa walk over to the guy and strike up a conversation. During the conversation with the guy at the bar, Lisa decides she wants to jump his bones too. Lisa ends up stealing the attention of the guy from Sarah. Sarah gets pissed off and leaves because she has been Tacoblocked.
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.