A roblox username, a tiktoker that have 3 accounts including xxsyd201111xxgacha, xxsyd201111xxroblox, and xxsyd201111xxfnaf.

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.