# quick as a flash

idiom

Source: https://englishreference.com/idiom/quick-as-a-flash
Updated: 2026-08-10

## Meaning

Extremely quick.

## Examples

- He finished his homework quick as a flash.
- The waiter noticed the empty glass and, quick as a flash, brought a fresh refill to the table.
- Sensing the predator nearby, the small lizard darted into the shadows, moving quick as a flash to escape certain danger.

## Origin

In reference to the rapidity of flashes of lightning.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.