flash

/flæʃ/ verb

Definition

› to shine brightly and suddenly, or to make something shine in this way: The doctor flashed a light into my eye.

› (also flash up

/ˈflæʃ ˈʌp/) to appear for a short time, or to make something appear for a short time: An icon flashed up on the screen.

(Definition of flash verb from the Webster's Essential Mini Dictionary © Cambridge University Press)

to do something without worrying about the risk or negative results

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