Definition of "jerkass"

Breaking up is fairly easy. Sometimes you have a jerkass who won't take the hint.

2003, Kim Corum, Heartbreaker‎, page 20

Plus, we can always use a reminder that this city's music scene is plenty big, even if some teen jerkass from Washington doesn't think so.

2006 May 4, Sam Machkovech, “Awards Anticipation”, in Dallas Observer‎

Braff has never impressed me as an actor of significant range, and he still doesn't. But this is a careful, subtle performance […] Considering what Michael does -- embark on a hot-and-heavy flirtation with a college-age gamine he meets at a friend's wedding -- it would have been easy to make the character a cliché of noncommittal jerkass dudeliness.

2006 September 15, Andrew O'Hehir, “"The Last Kiss"”, in Salon.com‎