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

cracker jack

A crazy, silly, or nutty person

That guy is such a cracker jack!!!

cracker jack by 1Anon. April 26, 2006

bloody jack 

When a girl has her period into a cup, and a guy cums into the cup, they mix it up and drink it.

Your sister and I bloodyjacked last night.

bloody jack by Anonymous June 8, 2003

Jacky Jack 

Originating in Francia: 1. marijuana cigarette or joint 2. cigarette rolled with tobacco & marijuana 3. physical cannabis

1. Would you like to roll a Jacky Jack? 2. Do you have any Jacky Jack to smoke?

Jacky Jack by Justin D Turner January 6, 2009

jick jack billy flop flack 

The ability to climb tall buildings with no assistance

Clayton can jick jack billy flop flack easily.

jick jack billy flop flack by TIlove February 11, 2009

Sneaky Jack 

When a guy jacks off in bed while his partner is asleep

Girl to friend "I woke up last night to my guy doing a sneaky jack"

Guy to friend "I couldn't get my girl to wake up last night, so i had to do a sneaky jack"

Sneaky Jack by Bigworm13 October 3, 2010

Drowsy Jack 

The act of masturbating to become drowsy so it is easier to fall asleep.

I had 3 Red Bulls before bed so I had to drowsy jack to fall asleep.

I was so wound up last night that I had to drowsy jack 3 times to fall asleep.

Drowsy Jack by Pathetic White Guy February 18, 2012