Often used in casual conversation more than formal writing.

Casual Usage

Suggests doing something very quickly without exact time.

Implied Promptness

Can express mild impatience when waiting for someone.

In computing, a jiffy is a precise unit of time measurement.

Technical 'jiffy' should not be confused with the informal usage.

In computing, the length of a jiffy can vary between systems.

Used in physics to describe a time so brief it's hard to imagine.

The physics 'jiffy' is not used in everyday language, but specific scientific discussions.

Helps to understand activities or interactions at a subatomic scale.