An unusual word, in that it is both an adjective AND a noun. You can not only BE a "Dirtydog", you can also act LIKE a "Dirtydog"
To act in a Tiresome fashion, or to moan about everything and everyone that isn't to your taste or agrees with your opinion.
Closely related to the CUNT branch of the adjective family.
"Christ, that Dave is such a Dirtydog at times"
or
"Andy, don't act like a Dirtydog mate, it doesn't fuckingsuit you"
Someone who has no consideration for others, who at will, will just fart and belch in front of others around him and just doesnt care that what he has done is filthy.
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.