duffer

duffer1
noun
(informal)(非正式)
  1. an incompetent or stupid person
    笨蛋,无能的人
    a complete duffer at languages.
    语言学习方面的十足的笨蛋。
  2. (Austral.)an unproductive mine
    (澳)贫矿,不出产的矿
语源
  1. mid 19th cent.: from Scots dowfart 'stupid person', from douf 'spiritless'

duffer2
noun
  1. (Austral. informal)a person who steals and alters the brands on cattle
    (澳,非正式)(偷盗并改变牛马烙印的)偷牛贼
语源
  1. mid 19th cent.: of unknown origin; in use earlier as thieves' slang for 'someone who sells trashy articles as if they were valuable'
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