mongan

verb. To agree to attend an event or gathering, but cancel at the last minute due to external circumstances, especially if one has made a habit of such behavior.

noun. The act of monganing.

Billy said he was coming to the party, but we didn't expect him to actually show up. Sure enough, his house flooded and he monganed, just like last week's happy hour, when he was in that car accident.

Tina was supposed to go to the game night, but she had to work late again, so she pulled a mongan.

by user4656 November 4, 2011

mongdog

To be a complete and utter idiot or fuckwit

Your such a mongdog.

You mondog
You giraffe necked, squirrel headed mongdog

by SaladHunter March 30, 2017

Mong off

When 2 people smoke cones back to back and both try to not mong it before the other person

Lets have a mong off

Greg monged it on his 5th cone, decent mong off

by Mong off January 2, 2022

Mongeese

What should be the official and only plural of Mongoose.
(also, if not official plural than at least a legit collective noun)

Look, it's a mongaggle of mongeese!

by pandaninja May 12, 2011

Tana Mongeau

A term used to completely ruin an event

Guy 1: Hey man I’m having a party tonight
Guy2: Dont invite Jim, he’ll Tana Mongeau the whole thing

by HotdogHamburgerGuy July 6, 2018

Mongager

A manager who suffers from retardation, who cannot make manageable decisions.

"Brett is such a mongager"

by anti-mong September 21, 2011

Monger-monger

A Professional Agent, Manager, Representative or Talent Scout of -mongers, such as Fish-mongers, Iron-mongers and War-mongers.

(It should be noted that the organizer of industry events specifically for the Monger-monger community is called a Monger-monger-monger.)

Bill the Fish-monger: “Hi Brian, does Dave represent you, too?”
Brian the Iron-monger: “Hi Bill, yes he does. Dave is the best Monger-monger in town.”
Barry the War-monger: “I will fight you both… if Dave thinks that’s the right next move for me.”

by Heisenbeast - Lord of Hounds February 15, 2019