Jackaboon 

One who acts stupid, loves being stupid, but doesn't know that they are stupid. Like mixing a jackass with a baboon.

My nose is bleeding. Then stop picking your nose you Jackaboon.

Jackaboon by Mr. Walker-French Teacher January 23, 2009

jackaboy 

A common nickname the popular youtuber "Jacksepticeye"gives himself, along with some of his fans.

Jackaboy's last video was absolutely hilarious!

jackaboy by interstellar_timewarping1103 May 14, 2016

Jackbooking 

When a man jerks off whilst on facebook. He may or may not have an additional tab opened with porn. Can stem from the combined need for social attention and control over one's own life.

Torre knew he would have to conceal his jackbooking problem from everyone, yet he still got a disturbing thrill from masturbating while on facebook.

Jackbooking by GuidodrivesaCaddy August 14, 2010

jackaloon

a publicly acceptable way of calling someone a jackass. someone who recently has done something stupid and deserves to be called a jackass, but there are people around that wouldn't appreciate that and so you simply call them a jackaloon.

"Dude what's wrong with your toaster?" "You have to plug it in first you jackaloon."

jackaloon by inandaroundyourmouth February 3, 2010

jackathon 

Masturbating over and over usually more than 3-5 times a day.

Yesterday I had a major Jackathon since no one was home.

jackathon by Danny Bregman May 11, 2006

jackboot

1. A thick military boot.
2. A common epithet, used to conflate someone with Nazism.

"I am still without any clear information as to what a jackboot is. It is a kind of boot that you put on when you want to behave tyrannically: that is as much as anyone seems to know."

-George Orwell

jackboot by nedlum February 15, 2006

Holden Jackaroo 

The Holden Jackaroo is a medium sized SUV produced by GM Daewoo. Holden Jackaroos are most commonly found broken down and abandoned on the side of the road thanks to the ultra unreliable 4JX1 diesel/steam engine that Isuzu decided to fit in them.
Some owners believe their Jackaroo's can be taken off-road despite the fact a Holden Barina puts them to shame both on and off-road, let alone a real 4x4. This common misbelief is due to the vehicles semi-impressive suspension flex, which can be attributed to the soft pine chassis that was jointly developed by Ikea and Isuzu.

Most Jackaroo owners have moved onto more reliable and safer forms of transport such as hitchhiking with Ivan Millat, the rest are broke and stuck with it.

"No we won't insure your Holden Jackaroo. It's not worth anything and won't go anywhere"
"I'm sorry you own a Holden Jackaroo"
"Nothing says failure like a Holden Jackaroo in your driveway".
"No I can't fix your Holden Jackaroo. Get your junk off my property"

Holden Jackaroo by warlord_trooper March 22, 2019