catflap.org Online Dictionary Query

  plonker
     n.
     1 (lb en Britain  Ireland Australia New Zealand slang derogatory) A
  fool.
     2 (lb en Britain Ireland Australia New Zealand slang) A penis.
     3 (lb en Britain  Ireland Australia New Zealand slang dated) A man
  who sanctions sexual relationships between his girlfriend and his male
  friends.<ref>[https://web.archive.org/web/20110209033439/http://www.bbc.co.uk/history/programmes/wordhunt/newresults.shtml
  BBC History- The Wordhunt]Wordhunters noticed that the OED's earliest
  two quotations in their entry for 'plonker' were misplaced. In the
  original 1966 citation from All Neat in Black Stockings by J Gaskell,
  the word refers not to a 'foolish, inept or contemptible person', but to
  a wholly different sense of the word, meaning 'a man who sanctions
  sexual relationships between his girlfriend and his male
  friends'.</ref>

  plonker
     n.
     1 (lb en Britain  Ireland Australia New Zealand slang derogatory) A
  fool.
     2 (lb en Britain Ireland Australia New Zealand slang) A penis.
     3 (lb en Britain  Ireland Australia New Zealand slang dated) A man
  who sanctions sexual relationships between his girlfriend and his male
  friends.<ref>[https://web.archive.org/web/20110209033439/http://www.bbc.co.uk/history/programmes/wordhunt/newresults.shtml
  BBC History- The Wordhunt]Wordhunters noticed that the OED's earliest
  two quotations in their entry for 'plonker' were misplaced. In the
  original 1966 citation from All Neat in Black Stockings by J Gaskell,
  the word refers not to a 'foolish, inept or contemptible person', but to
  a wholly different sense of the word, meaning 'a man who sanctions
  sexual relationships between his girlfriend and his male
  friends'.</ref>

  plonker
     n.
     1 (lb en Britain  Ireland Australia New Zealand slang derogatory) A
  fool.
     2 (lb en Britain Ireland Australia New Zealand slang) A penis.
     3 (lb en Britain  Ireland Australia New Zealand slang dated) A man
  who sanctions sexual relationships between his girlfriend and his male
  friends.<ref>[https://web.archive.org/web/20110209033439/http://www.bbc.co.uk/history/programmes/wordhunt/newresults.shtml
  BBC History- The Wordhunt]Wordhunters noticed that the OED's earliest
  two quotations in their entry for 'plonker' were misplaced. In the
  original 1966 citation from All Neat in Black Stockings by J Gaskell,
  the word refers not to a 'foolish, inept or contemptible person', but to
  a wholly different sense of the word, meaning 'a man who sanctions
  sexual relationships between his girlfriend and his male
  friends'.</ref>

  plonker
     n.
     1 (lb en Britain  Ireland Australia New Zealand slang derogatory) A
  fool.
     2 (lb en Britain Ireland Australia New Zealand slang) A penis.
     3 (lb en Britain  Ireland Australia New Zealand slang dated) A man
  who sanctions sexual relationships between his girlfriend and his male
  friends.<ref>[https://web.archive.org/web/20110209033439/http://www.bbc.co.uk/history/programmes/wordhunt/newresults.shtml
  BBC History- The Wordhunt]Wordhunters noticed that the OED's earliest
  two quotations in their entry for 'plonker' were misplaced. In the
  original 1966 citation from All Neat in Black Stockings by J Gaskell,
  the word refers not to a 'foolish, inept or contemptible person', but to
  a wholly different sense of the word, meaning 'a man who sanctions
  sexual relationships between his girlfriend and his male
  friends'.</ref>

  plonker /plˈɒŋkə/
   [Br.] Dummkopf , Schwachkopf , Schwachmat , Hohlkopf , Hohlbirne , Blödian , Esel , Hornochse , Dussel  [Dt.] , Dämlack  [Dt.] , Doofmann  [Norddt.]  [Mittelwestdt.] , Döskopp  [Norddt.]  [Mittelwestdt.] , Dösbattel  [Norddt.]  [Mittelwestdt.] , Dämel  [Norddt.]  [Mittelwestdt.] , Dämlack  [Norddt.]  [Mittelostdt.] , Dummerjan  [Norddt.]  [Mitteldt.] , Spacken , Dödel  [Mitteldt.]  [BW] , Depp  [Süddt.]  [Ös.]  [Schw.] , Dummian  [Bayr.]  [Ös.] , Dodel  [Ös.] , Dulle  [Südostös.] , Wappler  [Ös.] , Hiefler  [Ös.] , Tubel  [Schw.] , Dubel  [Schw.] , Tschumpel  [Schw.] , Lööli  [Schw.] , Nullchecker  [Jugendsprache] , Narr  [geh.]  [veraltend] , Tor  [poet.]  [obs.]  [pej.]
     Synonyms: fool, jerk, airhead, clod, clodhopper, dimwit, nitwit, halfwit, loon, dolt, clot, charlie, prat, boob, poop, schnook, schmuck, gump ninny, tomfool
  
   see: fools, jerks, airheads, clods, clodhoppers, dimwits, nitwits, halfwits, loons, dolts, clots, charlies, plonkers, prats, boobs, poops, schnooks, schmucks, gump ninnies, tomfools, Fools rush in where angels fear to tread., Fools rush in!
  

  plonker /plˈɒŋkə/
   [Br.] Flasche , Pfeife , Heini , Knalltüte , Pfeifenheini  [Dt.] , Krücke  [Dt.] , Lusche  [Dt.] , Nulpe  [Dt.]
           Note: unfähige Person
     Synonyms: twit, git, twerp/twirp
  
   see: plonkers, twits, gits, twerps/twirps
  

  plonker //ˈplɒŋ.kə(ɹ)// 
  törppö
  fool