busybody

busybody
    n 1: a person who meddles in the affairs of others [syn:
         {busybody}, {nosy-parker}, {nosey-parker}, {quidnunc}]
    

Busybody \Bus"y*bod`y\ (-b[o^]d`[y^]), n.; pl. {Busybodies}
   (-b[o^]d`[i^]z).
   One who officiously concerns himself with the affairs of
   others; a meddling person.
   [1913 Webster]

         And not only idle, but tattlers also and busybodies,
         speaking things which they ought not.    --1 Tim. v.
                                                  13.
   [1913 Webster]
    

61 Moby Thesaurus words for "busybody":
      Paul Pry, Peeping Tom, a tale-bearing animal, backseat driver,
      butt in, butt-in, buttinsky, eavesdropper, fool, gossip,
      gossip columnist, gossiper, gossipmonger, horn in, informer,
      inquirer, inquisitive, inquisitor, interfere, interlope,
      intermeddler, kibitzer, make, meddler, monkey with, mouse,
      newsmonger, newspaperman, nose, nosy Parker, peeper, poke,
      pragmatic, pragmatist, prier, pry, querier, querist, questioner,
      quidnunc, reporter, rubber, rubberneck, rubbernecker, rumormonger,
      scandalmonger, scopophiliac, sightseer, snook, snoop, snooper,
      tabby, talebearer, taleteller, tamper with, tattler, tattletale,
      telltale, tittle-tattler, voyeur, yenta