名词
1. 很快;瞬间
If you say that you will do something in a jiffy, you mean that you will do it very quickly or very soon.
1. a very short time (as the time it takes the eye to blink or the heart to beat)
e.g. if I had the chance I'd do it in a flash
Synonym: blink of an eyeflashheartbeatinstantsplit secondtricetwinklingwinkNew York minute