be quick on the draw
 be quick on the draw
  : to be quick about removing a gun from where it is kept : to quickly draw a gun and be ready to shoot it
   — often used figuratively
   When the huge crowd suddenly became unruly, security was quick on the draw. [=security reacted very quickly]
   Critics may have been a little too quick on the draw.
  
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 Main Entry: draw
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 be quick on the draw — see draw, 2
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 Main Entry: quick