A passenger ship that carries passengers from Rach Gia, Vietnam to Phu Quoc island.
During my vacation in Vietnam, I rode the Superdong for three hours.
by Cuong D. Tran January 27, 2009
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it is a term used in new orleans and that area to describe a very large penis. get because it sounds like superdome. oh watever screw you if you don't find that the tab bit humerous.
Karen that guy has the superdong"
by kbucker13 April 7, 2011
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