Double Jack 

Either during sex at orgasm or while your 'one night stand' is asleep.
the idea is you cum and shit all over your partner at the same time giving you and your partner your weird sexual jollys. if your partner is asleep then you do the same process without waking her up and leave her alone in her house/flat, so she wakes up with shit and cum all over her body, make sure you give her a fake name so she cant track you down.

Ex1 - dude i was banging this chick lastnight and she asked me to double jack all over her face!

Ex2 - hey i had this one night stand lastnight and when she was asleep i doublejacked all over her body and i went back home!

Double Jack by Reiss "The Sex" Jones May 5, 2008

double jack 

A shooter that is made of 1/2 yukon jack, 1/2 jack daniels

Did you see Derek last night? 4 double jacks and he was done!

double jack by DAWS-C December 25, 2007

Double Jack 

When you assist your partner in jacking off.

Jacking off your Boyfriend the same time he masturbate.

Did you enjoy our Double Jack this morning?

Double Jack by Past & Present July 7, 2015

Double Jack 

To be affiliated with two groups or gangs.

"I'm double jacking BX and Uptown. I be everywhere.

Double Jack by The Deli (wit the Henny) April 4, 2025

double jack n coke 

When you get a handjob from two hookers while doing cocaine

Bill's wife was about to go down on him, but he said, "nah, I'd rather have a double jack n coke instead."

double jack n coke by Open Thy Garage Porn October 4, 2014

Double Jack Extreme 

See Double Jack For Definition
Exact same Idea As The Double Jack But Instead Of Shiting On The Partner You Do The Same But When You Have Diarrhea!
Some Would Say This Is Sick But Oh Well!
See Yah!

Yeah I Had Diarrhea So I Double Jack Extremed My Wife!

Double Jack Extreme by Reiss 'The Sex' Jones May 28, 2008

double-dick jack-off 

A double-dick jack-off is when a guy takes his own dick in his hand and and grasps it along with his JO buddie's cock, and then jacks them both off at the same time -- trying to cum at the same time so they can feel and see the cum-spasms spurt from one another's dicks at the same time.

Now and then, Matt likes to give us a double-dick jack-off!

double-dick jack-off by USAF Cadet June 29, 2021