the roundest, sexiest, and most attractive set of bum cheeks you can and will ever find, so succulent and so juicy that you can't stop thinking about them once you see and or touch them for the first time.

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.