slang; a United States penny. Named so because of its color it resembles feces after multiple handlings, and is worthless. DooDoo "Nickle" refers to the fact that the nickle is the only other U.S. coin with a smooth edge.
I would get me a double cheese, but all I got is two quarters and some DooDoo Nickles.
by JonnyDeekay April 01, 2009