2
Slang term for something or someone being smooth, like the peanut butter. Can also be used to say something is cool
Dude Mark is so jiffy with the women.

Tom Cruise: Have you seen that new Tom Cruise film?

Tom Cruise: No, but i heard it was pretty jiffy!
by Jamammal January 03, 2011
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3
The unit of time that is one jiffy cannot be defined relative to other units of time, it is separate, disassociated and different from the way other units are measured and experienced and cannot therefore be explained it terms of amount of time. For jiffy is time, in its raw form and is not like anything that we as humans can comprehend!
Thor: I'll be there in a jiffy.
Inconspicuous looking egg: That does not give me any indication as to how long you are going to be as jiffy is an indefinable period of time.
by dogfly September 21, 2007
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5
The amount of time taken for a beam of light to travel the diameter of 1 nucleon(the particles that make up the nucleus of an atom)in a vacuum.
It would take billions of "jiffies" to just say the word jiffy.
by Dr.What April 18, 2010
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6
A jiffy is like a hoopty, a whip or just a car if you prefer to speak normally. The term derives from jiffy, used as an unspecified unit of time aka preppy slang meaning quickly or short period of time. However when jiffy is used by a roadman it is referring to a car, usually a piece of shit as most of them are poor, although relatively quick as it denotes from a quick period of time.
30 BSIDE: “Jump in the hoopty make dd drive it”
BigNEG:”We don’t talk ‘bout hoopty’s we Just got jiffy’s, f plates spliffy.”
by swagstarjoe May 24, 2018
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7
A verb. Used to denote someone who is very loose with their sexuality and spreads their legs easier than the creamy version of the peanut butter which shares the same name

May proceed words like Super, Mega, and Ultra to emphasize
severity of Slutitude
Holy damn...Stevin and Lauren are being wicked jiffy tonight to get over those British twins they lost to finals....
by Stevren December 21, 2011
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