1. A small round piece of shit that can accidentally escape when pushing a huge fart.
2. A small round amount of shit that will not flush down the toilet.
"Bolivian Marching Powder" appears in Bright Lights, Big City by Jay McInerney published in 1984. The main character describes the brain and inner soldiers marching around once they've been stimulated with cocaine.
"All might come clear if you could just slip into the bathroom and do a little more Bolivian Marching Powder. Your brain at this moment is composed of brigades of tiny Bolivian soldiers. They are tired and muddy from their long march through the night. There are holes in their boots and they are hungry. They need to be fed. They need the Bolivian Marching Powder." - Bright Lights, Big City, Jay McInerney, 1984
Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.