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.

by mondo270 May 23, 2010

jack-off

Someone who does not focus at the task at hand and instead messes around. Also can refer to someone who enjoys masturbation.

Today in study hall Johnny was a complete jack-off.

by TheRockstar July 14, 2007

jack off

A spin off of the Jackass Mtv show.
(aka a jackass spinoff is a jack off)

The Bam show is a Jack off.

by kinogottx July 9, 2004

Jacking off

Helping your uncle Jack get off of a horse.

That guy was Jacking off in the stock yard.

by Kid with assburgars March 1, 2019

Jack off

A fan of "Jack Johnson"

Often seen wearing birks or sandals while chillin' in the quad with his backward-baseball-cap-wearing "BROS"

that jack off sure is chill

by genldick April 7, 2008

Jack off January

Beat yo meat everyday 🅱 don't matter if that shit turn purple.we will hear fapping across the world for 1 month. Stock up on the lotion too

Almost Jack off January my dudes

by Big smokes November 9, 2017

Jack Off Buddy

A friend you watch porn with and jerk off in the same room while watching porn. Can be between two perfectly straight males. An activity more commonly shared in a males teen years with a friend(s).

Billy- " Hey man, check this porn star out, shes so fucking hot, u want to watch some porn?"

James-"fuck yeah dude, let me grab us some lotion and some towels"

Billy - It's so awesome having a Jack Off Buddy dude"

by Moneyman2345 October 7, 2017