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pipe dream


: a hope, wish, or dream that is impossible to achieve or not practical

Full Definition of PIPE DREAM

:  an illusory or fantastic plan, hope, or story

Examples of PIPE DREAM

  1. His plan for starting his own business was just a pipe dream.
  2. <opening our own restaurant has long been a pipe dream>

Origin of PIPE DREAM

from the fantasies brought about by the smoking of opium
First Known Use: 1890


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