Jack-off 

A person who prevents everyone around them from discussing the finale of "Lost" because they haven't watched it yet. The prefix "Jack" comes from the first name of the candidate Jack Shephard. The suffix "off" refers to the person being a jerk-off.

Co-worker 1: Holy cow! Did you see "Lost" last night!

Co-worker 2: Shhhhh! This Jack-off dvr'd it last night and watched the ball game instead. We'll have to talk about it tomorrow.

Co-worker 1: What a jerk-off!

Co-worker 2: You mean Jack-off.

Co-worker 1: Yeah, whatever.

Jack-off by mondo270 May 23, 2010

Jack Davis

An absolute bitch of a boy, who often shits his pants.

He also never showers and smells of onion, cheese, and ass.

Imagine a moist toe fungus in human form. That is a Jack Davis

Oh god bro I saw a Jack Davis barbecuing his dick earlier at the gas station

Jack Davis by braxtontheasslicker December 1, 2019

jack that ass 

take that Bytch out of the club and have sex with it

i jacked that ass out of the club and fucked that Ho then bounced with her younger Sister

jack that ass by homeboy October 17, 2004

Jack-cunt

The act of being a cunt, and doing everything possible to Jack people off.

1. "Damn, Jack is a cunt!"

2. "Fuck that Fucking Jack-cunt!"
3. You leave the room for a short period of time, and on your return, realise that Jack is in your chair. "Get the fuck out of my chair, Jack You cunt!"

Jack-cunt by Hardcoresucksthepecker February 7, 2010

jack frost

When you are doing a girl from behind, and you are about to ejaculate, you stab her in the back with an ice pick

Dude 1: "I totally just climbed Everest! I don't know what is left to accomplish!"
Dude 2: "You take that ice pick and go jack frost on some ho"

jack frost by Theodis Bergstein June 21, 2006

Jack Attack 

A mixed drink that consists of Jackdaniels and Monster energy drink. This Uses the same meathod as a Jagger bomb but useing jack daniels instead of Jagermeister.

At first you wont feel it but then you feel the Jack's hit you like an attack.

"Wow Richards Jack attack is awesome! How did he make it again can't remember anymore"

Jack Attack by FrostBite151 October 23, 2009

jack flash

member of the cushty air kids, known for speed and power

there goes jack flash

jack flash by watson and jackson5 June 27, 2006