An adjective used to metaphorically refer to a person as if they were living in squalor conditions, possessesing poor language skills, dirty or tacky clothing and generally having no regard for, nor prior exposure to, social etiquette. A derogatory reference to someone who could be likened to someone who posseses a small amount of crack, a crack pipe, an unusual amout of cardboard and a rusted shopping cart for a car. A serious insult....
"EEEEEEEEwwww....that girl is totally undabridge"....wow, check out that car, the driver is definitely undabridge....
Aborigines who live under a bridge. They mostly sleep all day but at night the venture out to bum durrys and money off other people. Mostly found in Townsville.
Man 1: I went walking through the mall the other day and one of those damn underbridgines came out and asked for a smoke!
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Girl: I swear everytime I walk over that bridge those underbridgines upskirt me.
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.