Definition of Russian word usually used in International community chats by Russians ,it’s a translation of a word “Hello”, but with changed words and modified pronunciation

Also it’s more impudent and brave way to greet , it’s refers confidence and chilling vibes

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.