A large wilabeast looking john Jorgenson acting hillbilly country slut with and abnormally large sphinkter with a sex drive the size of a blue whale regularly spotted in small towns such as weyauwega wi

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.