Jack

Philly slang for phone or cell phone.

(person 1) Yo man I need to get at cha..
(person 2) Alright, I got u, but I gotta run quick, hit up my jack later.
(person 1) aight.

by Inkdup420 January 21, 2011

Jack

A Ginger human being that possesses pro skills, he has a big penis and is well known for his Ninja reflexes.

Wow that guy is so Jack
Pro skills, no thats just Jack

by The Wimping Weasel April 10, 2011

Jack

An awesome basketball player. One of the nicest people you will ever meet. He isn't mean to anyone. He loves to meet new people but can be a little shy. He attends MBA and is very very smart. He is also very nice looking, cute, and has sweet hair. I love Jack more than anyone in the world!

Jack's secret best friend wants to hang out with a Jack

by weeeeeuuuiohn November 26, 2011

Jack

A complete twat.
Only applies to British jacks though.

See that Jack over there? What a Twat.

by 5789 December 11, 2017

Jack

The act of chilling, especially on a Sunday with a hangover.

I hit it way too hard last night, I need to jack on the sofa.

by smash101 October 20, 2013

Jack

An awesome dude. Always makes the funniest flipnotes. He is very nice and understanding. After getting to know him, he seems like a brother; a crazy brother, but a brother nonetheless. Also, he kicks @$$ at Smash bros. Brawl and Modern Warfare! His awesomeness level is OVER 9000!

Jack: Hey, check this out, I just finished the funniest flipnote.
Victoria: Cool, lemme see...
*after flipnote*
Victoria: LOL that was great! You and Aaron give us Aspies a good name!

by the-chick-with-the-notebook August 1, 2011

Jack

An insult to the "Noah" maneuver. A Jack is able to wear 10 girls as rings, one as a hat, and one on their good ol' Johnson.
In other words, the sex king.
A Jack only uses women as clothes.

Wow, i just got jacked last night.

by THEassking May 4, 2011