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in a flash

idiom

Definition of in a flash

informal
: very quickly or suddenly
  • I'll be back in a flash.
  • The idea came to me in a flash.

Word by Word Definitions

flash play

  1. : rush, dash

  2. : to break forth in or like a sudden flame or flare

  3. : to appear suddenly

  1. : a sudden burst of light

  2. : a movement of a flag in signaling

  3. : a sudden and often brilliant burst

  1. : flashy, showy

  2. : of, relating to, or characteristic of flashy people or things

  3. : of, relating to, or characteristic of persons considered social outcasts

  1. : by very brief exposure to an intense altering agent (such as heat or cold)

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