To do 'The Dirty Guinness' one must down one's pint of Guinness then continue to thrust said empty pint glass into ones face, shattering it in the process.
Paddy O'Halloran: I can't make it into work today boss.
Boss: Why might that be Paddy?
Paddy O'Halloran: I only went and did The Dirty Guinness a few times last night, it was Finlay's stag do!
Boss: Good lad Paddy, I'll be seeing you tomorrow 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 $2million.