B-Jack 

Verb: The act of smacking somebody with your hand/weapon. Originally a term coined by Halo enthusaists in the greater Cleveland area. In standard Halo controls, the "B" button is set to perform a melee attack. Hence, to B-Jack a player is to press the "B" button and jack them with your gun.

Quod Bravo broke his shields with a charged plasma shot, and killed him with a B-Jack.

Sierra Kilo snuck up behind him, then B-Jacked him in the back.

B-Jack by Queezy July 27, 2005

Jumping Jack-Offs 

A Jumping-Jack Off is just like the motion of jumping jacks, except you have one hand in that particular motion

I went to the gym, and as a joke I did my entire work out. The very last one I started the Jumping Jack-offs

The best way to loose weight is to do Jumping Jack-offs

Jumping Jack-Offs by Cadillac C--Y February 27, 2011

Captain Jack Syndrome 

A disease where a character in Doctor Who repeatedly dies yet continually, through a series of events, comes back to life.

'I think Arthur Darvill's character, Rory, might have Captain Jack Syndrome'

Captain Jack Syndrome by Doctor Maxwell February 5, 2012

just jack it january 

Similar to Destroy Dick December, Just jack it January entails that the individual must only "jack it" (Masturbate) with his/her (Gender Inclusive) free time. The challenge begins as soon as the little hand strikes 12 on January 1st. Many in the past have considered it to be a group activity as it begins on New Years day when many individuals are with friends and family.

Arjun: Man I'm so tired from destroy dick december
Diana: Get ready for round 2, a.k.a Just Jack It January!

just jack it january by J_A_D_G April 21, 2018

gorilla jack 

A last resort life or death self defense move against any male entity. The Gorilla Jack. You simply grab him by the penis, squeeze tight, and hammer away!

This man wouldn't quit harassing me so I Gorilla Jacked his ass!

gorilla jack by @MastahBetta November 14, 2020

Dirty Jack 

The act of shoving a stuffed squirrel in your dogs ass therefore making him erect and forcing him to bone your sister while you watch and jerk in the corner

“Wow Brayden just performed a dirty jack!”

Dirty Jack by Braydenscoochie420 November 20, 2018

Square Root of Jack Shit 

Absolutely Nothing. See Square Root of Fuck-All , Square Root of Sweet Fuck All and [fuck-all squared.

"He knows absolutely the square root of jack shit about food and cooking."
- James May, Former presenter of Top Gear UK, on Richard Hammond.

Square Root of Jack Shit by [e-mail] April 30, 2016