A medical condition found only in males that consists of the growth hormones in their body to go directly to their penis rather than to their height. The increase of length in their penis is so severe it can be classified as a "third leg" or a "tripod".

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.