When a women Squeezes her Breast, And Out comes Fecal Matter (AKA Shit) From eating too much Chipotle, and Holding In the Chipotle That she refuses to get rid of, at the 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.