Circus Jiffy 

When a girl gives a blowjob while doing a handstand.

My girlfriend gave me a insane Circus Jiffy last night.

Circus Jiffy by B@B February 16, 2014

Diffy in the jiffy 

Used commonly as slang in the modern videogame League of Legends, popularized by a Twitch streamer Tarzaned and many others, when one of the players in one of 4 lanes (Botlane, Midlane, Toplane, and Jungle) hardly underperforms in the Jungle role or gets outplayed by the enemy player several times, causing the game to be lost before 20-minute margin.

Yassou: Oh no! We have Nightblue3 on our team
Sanchovies: Diffy in the Jiffy it is...

Diffy in the jiffy by Chrive May 29, 2020

Reverse Jiffy Lube 

A hybrid of the popular reach around penis grab. This occurs when a female reaches between a males legs from behind and begins to grip and rub the penis. Done over clothes and results in a penis erection. Usually done as a mating ritual to see if the male "sizes up" so to speak.

Jenny is giving Earl a reverse Jiffy Lube. That lucky S.O.B.

Reverse Jiffy Lube by DIRECTOR DRE December 9, 2008

In a Jiffy

Something that is done very quicky and without delay.

I'll fix ya up in a jiffy.
I'll be there in a jiffy.

In a Jiffy by Dancing with Fire December 28, 2010

Jiffy Wiz 

A period of time. It is derived from the computer term jiffy, which is a clock (computer) dependent interval of time. It is so short that hundreds of thousand could pass and a human couldn’t even sense it. From the human perspective, with any passage of time the jiffies would just wiz by, hence the term “jiffy wiz”.

Usage:
"I gotta squat for a jiffy wiz in The Gran Manzana and I've been head sparkin’ ‘bout pounding that Coney fillet in a twee fire-in-the-hole.
The dewclaws are up. Ya wanna draft my flivver?
Bang the pipes by 5:00 or hold peace.”

Translation:
"I’ve got a layover in New York City and was thinking about getting a hotdog in a quaint restaurant.
I’m enthusiastic. Do you want to come along?
Call me by 5:00 or it will be too late."

Jiffy Wiz by goose_on_a_roof October 9, 2020

reverse jiffy lube 

A maneuver in which a female reaches between a man's legs from behind in a attempt to cup a feel of said man's cock. This is an attempt to see if the man "measures up" to her standards.

Michelle: "Jewel has reverse jiffy lubed almost every guy at the bar. Seems like only Rod fit the bill."

Sandy: "What a whore"

reverse jiffy lube by Dre the Director December 20, 2008

Jiffy-puff 

(noun) common result of a sascrotch (unkempt genital grooming) resulting in the elevation of undergarments away from body due to the pressure exerted outward from regional hair.

(1)"man did you see the jiffy-puff on that sascrotch?!?!"
(2)"yea, definitely an index of 2 inches on that one..."

Jiffy-puff by Cap'n Firecracker December 15, 2009