Blue- tee sal- on: Refers to salon services administered by a non-certified individual. Usually done by self, friend or relative, in a home setting. Often with mixed to disastrous results.

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.