MNG 

Acronym for Monday Night Guildford -> Big night out in Guildford, Surrey

Boy 1: MNG?
Boy 2: Fuck yes!

MNG by Guildfordboy June 29, 2011

MNG 

A file type one would _think_ makes animated GIFs nearly obsolete, but instead doesn't have much support.

MNG barely has any support, and isn't very well known. It's a shame, really.

MNG by Intelligence: The Anti-N00b March 21, 2005

MNG 

A large, ugly pimple that develops on the ass if you haven't been washing for a while. It doesn't hunt, but will otherwise annoy until finally popped (usually with fire). If you don't continue to wash, it'll come back in six weeks.

Person 1: Dude, my ass is annoying the fuck outta me.

Person 2: I think you got an MNG on your ass. You should pop that shit and start washing your ass, you greasy motherfucker.

MNG by Everyday Common Sense February 20, 2011

MNG 

An acronym for "Mayflower National Guard", a group on ROBLOX.

Domdullah: I am MNG
Sheldon: You are fat.

MNG by 404Anonymous November 18, 2020

MNG Rämibühl 

Worst best school in switzerland. Only school where you'll find more students playing cards rather than checking their phones during the breaks. Outsiders and administration think it's an elite school (which it really isn't).

"I went to the MNG Rämibühl in Zürich."
"Oh you must be a genius!"

MNG Rämibühl by Bottom-CH January 5, 2019

MNGAF 

Having a great deal of not giving a fuck. MNGAF stands for Me No Give A Fuck.

Nick: Mike, do you want to do the AP Physics work today? Mike: Umm, MNGAF

MNGAF by Nick Johnson February 28, 2005

mngh 

Expression of a feeling of discontent.

Mark: Shouldn't you be doing work?
Joe: mngh :(

mngh by ekula June 5, 2010