When anyone, particularly a hobo, takes a dump in a city, the resulting poop is known as an Urban Pinecone.

Note: Unlike standard pine cones, Urban Pinecones do not need fire to fulfill their destiny, simply an inconveniently placed foot.
While walking downtown, Bob stepped on an Urban Pinecone. A miserable look crossed his face.
by MysteriousJ December 15, 2008
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