jackpack 

n. The bag in which Jack Bauer carries his gun, PDA, ammo, cell phone, duct tape, knife, scope, etc. It is NOT a man purse.

The terrorists thought they had Bauer at last, but he pulled a bazooka out of his jackpack.

jackpack by SkidMarkyMark May 12, 2006

JackPack 

A masturbation kit consisting of tissues and lotion.

"I need to stop by Target on the way home and grab a JackPack.

JackPack by linesteppersteve September 29, 2015

jackwacker 

A person who sucks at life. They are incapable of performing basic and simple daily tasks (with the exception of masturbation).

You have your left turn signal on and are clearly trying to merge into the left lane; instead of slowing down to allow you to change lanes, the Jackwacker behind you speeds up to block your access. This guy is a complete Jackwacker; he sucks at life.

jackwacker by plokmijnuhbygv July 19, 2011

Jackjack 

The coolest superhero from the incredibles

Jackjack has teh b3st p0warz

Jackjack by jackjacklover February 10, 2009

jackjackjackjackjack 

To talk often on various topics/experiences about a new boyfriend that all the listener remember is the man's name.

Yesterday I went to the cinema with Jack
Today I'm going round Jacks
Did you know Jack is tall?

"jackjackjackjackjackjack"

jackjackjackjackjack by yousillyfacedboy October 6, 2011

Jackzacker 

A homosexual activity, which involves an individual "Jacking off" a minimum of 10 other gentlemen in a single night/party/event. Only once all 10 men have ejaculated can the act be called a Jackzacker.

Brad: Last night at the club i Jacked off 15 blokes
Shane: thats a great Jackzacker-ing
Brad: yep once I hit 12 my right wrist got sore so I had to use left
Shane: is that a record?
Brad: yep my jackzacker record was 13 not its 15!

Jackzacker by The park 9 pussy pounder January 12, 2017

Jacktack 

When in a crowded space and you kick up your heel so it hits the person behind you in the gooch or genitals.

Person 1: I'm finna jacktack Raul
Person 2: That's gonna leave a bruise
Person 1: How so?
Person 2: You have really bulky shoe soles.

Jacktack by MipMelting May 9, 2023