In a jiffy means in a moment. A jiffy is a small, indeterminate amount of time. Jiffy enters the English language in 1780 to mean a moment, an instant. The origin of in a jiffy is unknown, though it may have been a slang term used by thieves in the eighteenth century to mean lightning. Jiffy is now a term of time value for various situations, such as the amount of time it takes for light to travel one centimeter in a vacuum, the duration of an alternating current power cycle or the time between two ticks of the system timer interrupt in computing. Occasionally, the phrase in a jiffy is abbreviated to in a jiff.
MC clears Smart City Proposal in a jiffy (The Tribune)
With the party season in full swing, you need to make sure that you are equipped to change from a work-dreary daytime look to a festive-cheery party look in a jiffy, despite that demanding job and a host of household chores. (The Times of India)
They’ll say that when poor Fred seemed way past repair, he was healed in a jiffy by yogurt and prayer. (The Newnan Times-Herald)
Nowadays, Solomon tells our James Covert, it’s the so-called 10x software engineers who have amassed rabid fans in coding markets for their rare ability to write top-notch code in a jiffy. (The New York Post)
Now, with combined offices, the process has become an easy errand and people are in and out in a jiffy, most of the time in under minutes, McKee has said. (The Orlando Sentinel)
Every time there is yet another mass shooting in the US, I am sure many Australians get a supercilious feeling that we could fix that in a jiff. (The Canberra Times)