Jiffy is a unit of time? Who says so? No dictionary that I can find! Given that the word dates from the 18th Century when it would have been impossible to even measure milliseconds such a usage seems both unlikely and undesirable.
Jiffy is a unit of time? Who says so? No dictionary that I can find! Given that the word dates from the 18th Century when it would have been impossible to even measure milliseconds such a usage seems both unlikely and undesirable.