Definition of in the blink of an eye or in a blink in English:

in the blink of an eye (or in a blink)

informal Very quickly.
More example sentences
  • Richard was a little shocked to see her go from shy and demure to forthright and direct in the blink of an eye.
  • Dinner went by reasonably quickly, and in the blink of an eye, they were fast asleep, except for one.
  • He looks like a picture, frozen in time, one instant that happened in the blink of an eye, unnoticed and uncared for by the rest of the universe.
See parent entry: blink

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Word of the day guzzle
Pronunciation: ˈgʌz(ə)l
verb
eat or drink (something) greedily