adj. Jerky plus assy squared.
Real citation: "Agreed. Homer at his jerkassiest behavior isn't as bad as Peter Griffin's behavior all the time. And for all of Homer's many faults, I can still understand why Marge loves him. I cannot say the same for Peter and Lois."
(Cleopatra, "The Simpsons," April 20, 2004, Television Without Pity, http://forums.televisionwithoutpity.com/index.php?showtopic=1150752&view=findpost&p=2804340)
Made-up citation: "As the Bible says, 'The dumbassiest monkey is closer to God than the jerkassiest ape.'"