A person who hooks up with a tour guide.

Esp. A bratty, stuck up, spoiled, shameless or disrespectful person.
A young woman that no one liked on a study abroad, that could't get any guys from the trip to hook up with her because she was a pretentious asshole (she told a guy to "stick his P in her V", seconds later she then flopped drunk onto the floor like a carp). Later in the trip the Ecuadorian tour guide, Duncan dirtydunked her in front of the other tour guide. While she was getting dirtydunked she was speaking what little spanish she could, "Mas mas, Fabian stop looking". Then brags about getting dirtydunked to the group.
by Gala Pagos June 8, 2010
Get the Dirtydunked mug.