Back jackin'

(băk'jăkin') v.- An approved method of masturbation in the workplace in which you use the upper posterior side of a willing co-worker to rub your genitals on in a slow, sensual motion. Grunting noises are an optional way of showing approval in your back jackee, but can make for awkward moments.

Chris, noticing Curt's lusting gaze at his boner, decided a back jackin' was imminent.

Back jackin' by boner gazers March 4, 2009

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.

Jack in the Back by baddefinintionperson May 28, 2009

backpackin 

1. describes someone who has swag

Joe: Yo man, do you see that chick?
Tim: Yeah, she's backpackin

backpackin by higuys. October 13, 2011

Backpackin 

It means that something is awesome or funny. A new word to define something awesome.

John: Wow that concert was pretty backpacking
Sue: Yeah it was!

Backpackin by Kye28 October 8, 2011

BackJacking 

The act of laying on your back watching netflix while jacking off AKA Backjacking

Cody enjoys backjacking to american dad on netflix.

BackJacking by Steelson Jeffflex October 21, 2013

Backjacking 

Verb

1. The act of rubbing ones self to ejaculation within the rolls of their partners back fat. Similar to a reverse titty fuck.

"I brought some fat broad home from the bar last night. I couldn't find her vagina, so we started backjacking instead."

Backjacking by billebllunt December 8, 2013

Backjacking 

The act of traveling across country, sperm bank to sperm bank, funding your travels with your ejaculate

My friend and I went backjacking across North America on summer break

Backjacking by Nero1313 November 19, 2015