A bitch that doesn’t think before she acts. She tends to fake pregnancies for attention and sleeps with anyone. Jennissis pushes all her friends away, and doesn’t give a shit about what anyone says except herself.

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.