half jack

Jacking off and ending right before you’re about to cum and then proceeding to workout right after to maximize T-levels. Proven way to get your biceps bigger
Better Pre-workout than Gnar Pump

Me: Hey Joe, why couldn’t you sumo deadlift 450 today?
Joe: Bro, honestly, I didn’t half jack today, I’m just not feeling as good
Me:Pussy

by Half-Jacking December 12, 2018

Jacket and Jack It

The motion of getting your jacket, placing it over your crotch area, sliding your arms under the fabric, reaching for your dick with a hand, and masturbating away. The move is usually used for concealment when in a public area while having a very high sex drive.

Isaiah: Yo bro, I got nudes from her yesterday while I was in Walmart and I just had to jack off then and there using the jacket and jack it method

Brandon: Really bro? I got caught and kicked out of Target for doing that

Brian: I don't use the jacket and jack-it method. I just take my dick out in public and jerk off in front of everyone

by DuncanDonuts October 27, 2018

Pull a Jack

Pull a Jack

A Jack is someone who has the ability to find and say something perverted for everything, even if it is totally unrelated to sex.

Can you not make sex jokes for just this one period because you always pull a Jack like that.

by NoBullying,jk Idc January 17, 2019

Jack Flapping

The action in which guys shake the excess urine off of their penis after urinating.

I hope you did not forget to do your Jack Flapping

(this was Made by Jarryd Hardam)

by Somnili June 30, 2016

Ball-jack

To revoke or inhibit the ability to enjoy one's day. Comes from the idea of taking away someone's balls who uses them to have fun.

"
I'm being ball-jack (ed) right now, my Minecraft mods just won't work!
"

by BallJacker92 January 6, 2022

Twist Jack

When a partner is stroking a meat pole in an up and down motion while simultaneously twisting the wrist for increased pleasure. Also known as “Peppergrinding”

Sally Strokes gave me one heck of a”Twist Jack” last night in her car!

by Big John Swellington October 10, 2020

Slot-jacked

When you reserved a conference room slot and the person with the time slot before you eats into your time, while looking at you waiting through the window.

Tim slot-jacked the big conference room because he had the president on a conference call and couldn't get him to hang up.

by #1 peon June 28, 2010