Someone who is a bumbler or a slacker. The term arose after an incident in which a number was inadvertantly dialed after the phone's owner had placed the phone in his back pocket.
Bob did nothing but wilf on his computer all day--he's such and ass dialer. (or) Jack tied his shoes together and then tried to walk home like the ass dialer that he is.
by Laura Crandall April 28, 2007