an unsettled unit of time. used mainly as a spontaneous remark to get away from other human beings.
"I'll be back in a jiffy" *slow footsteps breaking out into a sprint. a slam of a door. distant footsteps*
by Juliaaaa July 13, 2003
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Used in a song by Juelz Santana

"I'll be there in a jiffy w a bag full of jiffy, I aint talkin bout peanut butter either brother"
by ebombs November 12, 2008
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"Act" as in being surprised but not actually caring at all
"Hey billy, I just got a new phone!"
"Jiffy" (fuck off)
by Lubemister69 January 10, 2014
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On the Commodore 64, approximately 1/60th of a second, and equals one machine cycle. The timespan is the same on both NTSC and PAL models of the Commodore 64.
If I can squeeze one more jiffy out of the player-movement routine, there will be enough time to do a smooth-scroll routine before the screen refreshes.
by SG Fan October 31, 2004
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1. A short period of time.
2. A time of bag for foodstuffs.
1. "It'll just take a jiffy to type this up."
2. "I've put your sandwiches in a jiffy bag son so you can just snack on them."
by brendan September 6, 2004
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A loser, someone who is very uncool would be called a "jiffy"
"Alex is such a jiffy"
"Hey jiffy pants"
by Jonny S March 22, 2006
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A unit of time that ranges in value from 1/1000th of a second to 5 minutes.
TTTM said he would be over in a jiffy.
by TTTM April 29, 2009
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