What's on your mug?

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

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

A complete twat. Only applies to British jacks though.

See that Jack over there? What a Twat.

By 5789

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

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