Engorged and lactating female breasts. A throw back to Bessie the Cow.

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.

Sex act in which you and your partner are in a 69 position and one shits in the others mouth. After said shitty situation you proceed to have anal sex, then each give each other a wet willy and finish in the other ear.