• noun the penis
  • noun a fool or contemptible person. The earlier sense seems to have fallen into disuse but, like many synonyms (prick, plonker, etc.), has been adopted to denote a stupid person. The word ‘dopper’ itself occurred in Norfolk dialect, meaning a thick blanket or sweater, but this is unlikely to be the origin of the derogatory usage which is probably related to the archaic ‘dobber’, referring to the male member.