The black sticky substance picked up off the floor and other surfaces inside Miami's Club Space. The substance consists of various liquids and solids comprised mostly of booze, drugs, and all sorts types of bodily fluids and exceptions. This "Space Goo" is commonly found around the cuffs of long pants and shoes after walking around the club, but maybe found just about anywhere on ones person depending on what kind of shape they were in while there. It can be very difficult to clean off bare skin, as it acts like glue, as such, it can be next to impossible to clean out of lighter colored articles of clothing.
Gasoline won't even get this Space Goo off my arm.