The turning of the fuck, in that during coital humpage, the party who is being penetrated turns a minimum of 90 degrees to either side while squeezing butt or cunt muscles in such a spastic way as to induce the giver of the rod to spontaneously combust while spewing hot jizz
One who is incredibly worthless, without purpose, and lacking any measurable worthwhile functionality. Surpassing the level of a Fucktard.
You know Eddie, if you would even attempt to pull your head out of your ass and stop being such a Fuckwrinkle, people might stop shitting in your coffee cup.