majack 

when you fail to make a rabbit appear out of your hat instead pulling out dandruff

i tried to do a magic show but instead did majack it was a terrible fail

majack by couldnt think of anything April 22, 2021

McJackAss 

A Term Used To Poke Fun At The YouTube Channel “McJackAck”

“You’re A Fan Of McJackAck?” “More Like McJackAss!” “Why You Into That?”

McJackAss by MacKRacKGacK February 25, 2023

Mojack 

Slang term for Icelander, especially a rural one--popular term among US military personnel stationed in Iceland during WWII. Origin unknown.

That Mojack insisted vehemently that his cow was sick because of being sexually assaulted by our soldiers, but after our camp veterinarian diagnosed and treated her for a common bovine ailment, she made a full recovery; then the Mojack gave us some cheese to make amends.

Mojack by hyjyljyj October 27, 2007

majjack

something we all hate

This pizza tastes like Majjack.

majjack by Adept October 30, 2004

wacko mcjacko 

When someone is acting worse than crazy, they are out of their damn minds!

She thinks she can steal my man? She is wacko mcjacko!

wacko mcjacko by Zcookingmama January 14, 2021

Mafacka

Mafacka

1. Slang for an already slang word; Motherfucker

2. Alternative to Mofo

3. Alternative to Muhfuh

"Man, you seen that guy Jake? He's a real mafacka!"
"Yeah. That mafacka got up in my mafackin' house, and stole all my mafackin' shit!"

Mafacka by Ryan P. M. May 24, 2006

maackin 

A word used mainly in Scotland- when you buy some soda from mc donalds and drink half of it, and then fill it half way up again with a spirit of your choice. For those who want to get smashed on a lothian bus with a fabulous disguise.
Maackin should never be done alone.Lame.

"shit. i completely forgot i was maackin last night.I guess it was just like i was sipping soda...but then I passed out.."

maackin by sumochild December 8, 2009