The non-Newtonian fluidic mixture found in and around discarded condoms used by truckers and their country courtesans. Resulting from diets high in Monster energy drink and gas-station nacho cheese.

Briefly, "the realization that each random passerby is living a life as vivid and complex as your own." Originally from the Dictionary of Obscure Sorrows, which has a lot more beautiful neologism definitions like this you might enjoy.