Noun, English slang: means a person who is being a complete fucking arsehole about Brexit.
Often seen on social media, gloating about 'are country back' to middle ages.
Have you seen Farage the arch-brectum on Brexit Broadcast Corporation again? What a gammon. The stupid quitlings believe everything that comes from his brectum.
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.