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

1. To masturbate
2. Alternative word for Nothing
3. On Your Own (An abbreviated form of "Jack Jones")

1. "Come on, who doesn't feel the urge to Jack one off when you see her on the telly?"
2. "I've done Jack all day"
3. "I'm on my Jack at the moment"

by Wo Wogan September 9, 2006

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

Jack

Kind and funny. Good-looking, and in love with a Kristen. Always will be, even though they might have a crush on someone else.

Scared of telling someone how they feel, though the person usually feels the same way.

Kid 1: So Kristen and Jack got together.
Kid 2: No duh, they were made for each other.

by longnights22 August 6, 2011