a cock reel is a form of masturbation when you tie a string around your cock and hang the string on the door, then pull up and down on you pee-pee and that my friends is a cock reel.

also used during sex when you tie the string around your cock and let your woman led you.

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.