Mong Biff

it is appropriate to call someone a mong biff when they have done something utterly stupid and/or idiotic.

it can involve more than one person, the person who notices the act of specialness will say "Mong" and it is open for anyone else to add "Biff"

bringing more humiliation to the person who experience the special moment

Chris walks into a lamp-post
Tori cries out "MONG..."
Greg adds "BIFF"

therefore Chris is a mong biff

by jabba dabba doodlely July 5, 2010

Bad mong

Somebody who comes out with pointless comments and is generally irritating, often used by the brainiest of people to describe a person less clever than themselves however it's a funny phrase and makes me chuckle. People who wear huaraches and skinny joggers are described as "bad mongs" as well as those who wear them shitty sports pants that look like condoms and EA7 bubble jackets. Usually overused but that's minor

Hahaha what a bad mong

Matt Finn Shut the fuck up, you bad mong

Mairead = bad mong

by Stalecake April 24, 2015

mong jump

paralympic sport for absolute mongs. current world champ: Jamie Smith

go and practice the mong jump you fucking spastic.

by mong1234 December 15, 2011

Option-Mong

When you give someone 2 or more options and they reply 'Yes'; making the situation confusing.

Dave: "You wanna go to the cinema tonight or go get something to eat?"

Sarah: "Yeah."

Dave: "Looks like we've got another option-mong here."

by WelshBwoi November 18, 2010

Mong-wafer

Someone so thick that you pity them, although still repeatedly take the piss out of them.

Aaron is a complete and utter mong-wafer.

by ImNotNeo March 7, 2007

Monged Out

A term used to refer to someone who is unable to speak due to a large intake of cannabis

Don't even talk to that guy, he is monged out!

by Goodguygav February 21, 2011

Mong Foot

When a girl's Ugg boots slope so far down to one side that they are walking on the sides of their feet. Instead of throwing the boots away they continue to wear them into oblivion.

Look at her over there, she's got mong foot!

by Peculiar Percy June 19, 2010