A Jack

A word used to describe someone who lied and or lies

That's fake, stop being A Jack

by Mario's_Kingdom November 26, 2018

A Jack

Cheats on women and lies to every single one of them. Pretty much lives up to straight J guy names being assholes!

"Man don't be A Jack!! They suck!!!"

by HeyDanisaurus May 31, 2020

jack and jack

They are two vine famous teenagers from Nebraska. They also have many good songs like "doing it right" and "flights". Jack Johnson and Jack gilinsky are also very hot.

Girl #1- I love jack and jacks song doing it right
Girl #2- Me too

by I love to turn up August 11, 2014

Jack to Jack

The Jack to Jack (Back to Back Jack) Is the attempt to masturbate immediately following a previous orgasm.

I attempted a Jack to Jack but I was to sensitive to continue.

by CharitableNinja February 08, 2009

jack-jack

Person who is kind & wholesome until pushed over the line. Reference to baby JackJack from "The Incredibles" Movie.

Don't keep pushing him. He's going to go Jack-Jack.

Be careful with him. He's got a Jack-Jack personality

by moviedude March 09, 2008

jack jacked

When a guy is jacking off and is interrupted by a second individual who "lends a hand" and finishes the job.Ideally,the interloper could be the wife,girlfriend,a hot maid,or cute neighbor girl. Strangely,the good samaritan could be a sister,grandma,brother or roommate.

I was choking the chicken when my sister's hot friend barged in the bathroom and jack jacked me.

by wolfbait51 May 24, 2011

Jack Jack

When one leaves his seat and calls jack jack which ultimately reserves that seat for him when he returns. Jack Jack was created long before Tap Tap and Jack Jack actually over rides all claims to tap tap. Originated in the city of Gig Harbor which was founded way before Tacoma.

When you get up, "Jack Jack".

by Chris Macky January 04, 2008