backjack

The act of multiple men sodomising eachother in a human train. Just before ejaculating each one pulls out and blows their load all over the back of the guy in front shouting "twenty-one !"

Damien the sick fuck went out and played backjack with 5 guys he met at a gay bar.

by DamienN July 14, 2006

backjack

the art of bending the penis through the back of the legs for a handjob

she said she was gonna show me something ive never seen before so she pulled my pp through my legs and gave me a backjack

by peepsey March 24, 2008

BackJacking

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

Cody enjoys backjacking to american dad on netflix.

by Steelson Jeffflex October 22, 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."

by billebllunt December 9, 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

by Nero1313 October 2, 2015

Backjack

Verb.

the act of paying someone back in cigarettes for a cigarette bummed earlier.

catherine: hey john, can i bum a cigarette?

john: sure, as long as you backjack me

by BOBBLE BOO October 19, 2007

Backjack

A form of masturbation where you slide your hand down your dick with your hand backwards, forefinger and thumb touching eachother. Your thumb should be facing in twards your balls and your pinky out twards the head.
Painting a face on your hand is optional.

"Sometimes I rub one out backjack style to shake things up a bit."

by Clam Choder April 25, 2007