The Collaborative International Dictionary of English v.0.48:

Flash \Flash\ (fl[a^]sh), v. t.
   1. To send out in flashes; to cause to burst forth with
      sudden flame or light.
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            The chariot of paternal Deity,
            Flashing thick flames.                --Milton.
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   2. To convey as by a flash; to light up, as by a sudden flame
      or light; as, to flash a message along the wires; to flash
      conviction on the mind.
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   3. (Glass Making) To cover with a thin layer, as objects of
      glass with glass of a different color. See Flashing, n.,
      3
      (b) .
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   4. To trick up in a showy manner.
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            Limning and flashing it with various dyes. --A.
                                                  Brewer.
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   5. [Perh. due to confusion between flash of light and plash,
      splash.] To strike and throw up large bodies of water from
      the surface; to splash. [Obs.]
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            He rudely flashed the waves about.    --Spenser.
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   Flashed glass. See Flashing, n., 3.
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