e-jack 

A man, usually one who is rather socially inept, whose only sexual activity is pleasuring himself to Internet porn, gay or straight, thereby coining the term, "e-jack."

Bob is so inexperienced and horny, so he just sits in front of his computer every night e-jacking to every well-endowed muscle man he can find. He needs to get a life!

e-jack by Angie Keekleman June 6, 2007

E-jack 

The short form of ejaculation

I e-jacked on my dog.

E-jack by Nestea Roxorz November 21, 2004

E Jack 

Short for ejacualtion
A funny name to call someone with the intials EJ.

Hey E Jack come make me a sandwhich.

E Jack by Bro000 March 3, 2009

E Jack 

To have an orgasm

We were at it for 30 minutes, I had to hit a E Jack when she got on top

E Jack by Lexx Diamond November 26, 2018

E-Jack-O-Lantern 

A pumpkin with a hole carved in it, meant for sticking one's penis into for masturbatory purposes.

Hey b, heard you got one of them e-jack-o-lanterns, lemme smash!

E-Jack-O-Lantern by silly boi mcgee November 4, 2017

E-Wank/E-Jack Off 

The action of touching ones genitalia and jacking off to your own works or your own art, especially in front of everyone digitally.

Boy 1: *jacks off to his typed out role play on a forum*
Girl 1/Boy 1’s Alt: *roleplaying by himself*
Boy 2: I checked your IP address, and that “girl” is you, mate. You’re a total E-Wank/E-Jack Off.

E-Wank/E-Jack Off by Collective Reasoning October 14, 2019

spice-E-jack 

A term used to describe a super gorgeous & sexy guy. His name may or may not be jack but it refers to the jack from Jack in the box. E for Extra Spicy.

Girllll have you seen that Spice-E-jack there by the corner? he one finnneeee man!

spice-E-jack by jarnella wikalikikipopop July 7, 2010