Formily a Fark.com username, to rotsky means to utterly and totally fail at something all the while trying to show others how it is done, or should be.
Bill: 2 plus 2 equals 4
Ted: No Bill, 2 plus 2 equals 7.987. Sorry I had to correct you, but incorrect spelling is a pet peeve of mine.
John: Uh, Ted, Bill was right, way to rotsky that equation up.