kibitzer

kibitzer
    n 1: (Yiddish) a meddler who offers unwanted advice to others
    

61 Moby Thesaurus words for "kibitzer":
      Dutch uncle, Paul Pry, Polonius, TV-viewer, admonisher, adviser,
      backseat driver, beholder, bird-watcher, busybody, butt-in,
      buttinsky, bystander, confidant, consultant, counsel, counselor,
      drugstore cowboy, expert, eyewitness, gaper, gazer, gazer-on,
      girl-watcher, goggler, guide, instructor, intermeddler, looker,
      looker-on, meddler, mentor, monitor, nestor, observer, ogler,
      onlooker, orienter, perceiver, percipient, pragmatist, preceptist,
      prier, pry, quidnunc, rubberneck, seer, sidewalk superintendent,
      snoop, snooper, spectator, spectatress, spectatrix, teacher,
      televiewer, television-viewer, video-gazer, viewer, watcher,
      witness, yenta