Jack's back

A term used to signify the return of 24, featuring the legend that is Jack Bauer.

Person 1 : "Are you excited about the start of season 5 tonight?"

Person 2 : "Oooooh yeah, Jack's back baby, Jack's back..."

by Ali JTB October 11, 2005

back off and jack off

When you are chillin w/ yo bitch and you is about to have sex or get head or wutev and u just run home and jack off instead.

Tijan backed off and jacked off when he was unable to go all the way with Lunice.

Why would he back off and jack off???

by Alan Zhu January 25, 2008

Jack in the Back

1. Basically, a kid posing as a bamf who stands behind his/her crew and is afraid to take real action in a fight.
2. Someone who claims they can kick ass, and they chicken out when someone wants to go.

James: I saw Jason behind those punks fighting after-school today. What a whimp.
Rob: I know, such a jack in the back.

by baddefinintionperson May 28, 2009

Finger jack from the back

The act of finger penetration to either the vagina or anus, while from behind. This can be accomplished standing, sitting, bent-over, or preferably while she's asleep with her back to you.

While my girl is blowing me in my lap, I like to finger jack from the back to pass the time. Then I cram my fingers up both of her nostrils so that she can smell her dirty ass all day long.

by Finger Maniac March 18, 2011

Dactyl Backjack

Performing the ol' reach around on yourself, an advanced masturbation technique. Word origins can be traced to dudefuckinghellyeah (DFHY) at burning man 2009.

The stranger is getting old, I think today I'll change things up and pull a dactyl backjack when I'm wanking.

by 1009 September 19, 2009

rolling backpacks

Swag on wheels, also know for making bitches moist

My friend and I walked into school with rolling backpacks close behind. I heard the bitches start to whisper and moan just at the sight of it. I knew it was going to be a good day for the two of us.

by The Master of Getting Bitches October 13, 2013

so much backpacks

A common expression that means one will achieve the highest levels of victory and will be praised as great by others.

He's gonna get so much backpacks with that new hat.

by njrunner22 May 11, 2008