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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 ole Garbage Barge.
by My penis is August 02, 2007
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