in a flash

Idioms  

1. Also,. Quickly, immediately. For example, I'll be with you in a flash, or He said he'd be done in a jiffy, or I'll be off the phone in a second, or I felt a drop or two, and in a trice there was a downpour. The first idiom alludes to a flash of lightning and dates from about 1800. The word jiffy, meaning “a short time,” is of uncertain origin and dates from the late 1700s (as does the idiom using it); a second, literally one-sixtieth of a minute, has been used vaguely to mean “a very short time” since the early 1800s; and trice originally meant “a single pull at something” and has been used figuratively since the 1500s.

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Example Sentences

See Examples For:

in a flash

Thirty-one days can whisk by in a flash.

From BBC ● Jun. 28, 2026

But that illusion is impossible if all of space-time occurs in a flash.

From Science Daily ● Jun. 8, 2026

Last month — to their surprise and seemingly in a flash — Edwards and his wife’s net worth hit $1 million, with home equity accounting for just one-fourth of it.

From MarketWatch ● May 15, 2026

“One Battle After Another” moves with breakneck speed, its 162 minutes going by in a flash.

From Los Angeles Times ● Mar. 11, 2026

Sam was out of his hiding in a flash and crossed the space between him and the cliff-foot in a couple of leaps.

From "The Two Towers" by J. R. R. Tolkien