trashsure - Any discarded object that is of dubious value could be either a piece of total crap or that missing "thing" that will finally make your life complete. To be a true trashsure, the object must be confusing as to its function or why someone would ever own the object and then throw it away in the first place.
Half Trash and Half Treasure.

when you've done something so cringe you can't stop replaying it in your head and it stops you from getting on with your every day life