when you run into a wall, while you have a boner, and break your nose.

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.

You, for reading this

Something my dad calls me

you

something you will always be

Disappointment
/ˌdisaˈpointment/
noun
• The feeling thousands felt when they were cheated out of szechuansauce at McDonald's