slam dunk


Concise Oxford English Dictionary © 2008 Oxford University Press:
slam dunk
noun
  • 1 Basketball a shot thrust down through the basket.
  • 2 N. Amer. informal a foregone conclusion or certainty.
verb (slam-dunk)
  • 1 Basketball thrust (the ball) down through the basket.
  • 2 N. Amer. informal defeat or dismiss decisively.
'slam dunk' also found in these Oxford entries:

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