A sexual undertaking very similar to the act of "motorboating" a woman's breasts. However, the "boating", if you will, occurs in the anal region of the recipient (male or female).
Dude#1: Hey man! Did you see the way Stacy was walking this morning?
Dude#2: Yeah. She looked like she took a belt sander to the ass.
Dude#1; Yeah man! Thats cause I gave her the oleGarbage Barge.
Any large and powerful German luxury sedan, SUV or other automobile. Examples include the Mercedes S series, BMW 7 series, Porsche Cayenne, any Maybach and possible the VW Phaeton
That long-wheelbase Merc S that rapper rides around in is such a Teutonic Luxo Barge