Flishy (n.): A term used to describe the act of doing something that will inevitably end in disappointment, yet still feeling compelled to do it anyway.
A study of the etymology of Flishy reveals a complex web of linguistic deceit, with roots in the words 'fleas' and 'sly', suggesting a pestilence that is at once both cunning and pesky.
Example usage:
"I'm going to try to fix this broken toaster again, I'm sure it'll just take a few more attempts to get it working."