noun. Seldom used in reference to delicate geniuses.
Real citation: “Kinda like Hills Have Eyes. One of my favorite movie of all time. But it looks ok. Even without Michael Berryman or Dee Wallace Stone..And Wes Cravens best movie IMO. Did you know that in Sam Raimis Evil Dead in the Basement of the cabin there is a poster for Hills Have Eyes? WELL THERE IS! And they are remaking Evil Dead also for some jackassfuck reason.”
(March 5, 2006, http://forums.livingwithstyle.com/showthread.php?t=267670&page=2)
Made-up citation: "A jackass differs from a jackassfuck to the same degree a mother differs from a motherfucker, according to my mom."