MU

A "Member Update" on any sort of forum or message board. They are usually weekly or bi-weekly, and they log the post gains of the members on a certain board. Top spammers spots are coveted.

The Elder Scrolls MU rawks so much!

by gtiff123 April 21, 2005

MU

"MU" (Pronounced Moo) is short for Mentally Undressing.
It is when a person is flirting with a member of the opposite sex whilst staring at their physical form. A witness or a friend of the person flirting must then say aloud the word "MU".

Two friends witnessing a man flirting with a woman.
Friend 1: "That guy is totally MU-ing that woman"
Friend 2: "I know...MU!"

or

A friend witnessing a man flirting with a woman.
Friend (aloud): "MU!!!"

by MNNGJ September 20, 2011

MU

An acronym that means Mutual Understanding

Person 1: 'you two officially broke up?'
Person 2: 'yeah, we had a MU and ended it peacefully.'

by Kitten0407 April 10, 2017

MU

Multi-user: Multiple users.
Often used for online games or puzzles, originally for one person, that has been adapted or recreated for multiple users.
OR:
- Collaborative
- anything implying multiple users

See also MUD (Multi User Dimension, Dungeon or Domain)

Multi user game, Multi user version, Multi user solitaire card game.

by yupp October 28, 2007

/mu/

The music board on 4chan. Most of the music discussed on /mu/ is avant garde-experimental-noise-indie bullshit that nobody's heard about. /mu/ users (often called /mu/tants) will flame anybody who likes anything else. Although there is a modest community of metalheads on /mu/ they are generally disliked by the obscure taste flaunting majority that inhabits the board. Basically, it is a big contest to see who listens to the most obscure bands. The less people have heard of the music you listen to, the better.

I went to /mu/ the other day. Never before have I seen so many pretentious tight-wads in a single board.

by musiclover16 May 09, 2009

mu

"Mu" is the correct answer to the classic trick question "Have you stopped beating your wife yet?". Assuming that you have no wife or you have never beaten your wife, the answer "yes" is wrong because it implies that you used to beat your wife and then stopped, but "no" is worse because it suggests that you have one and are still beating her. According to various Discordians and Douglas Hofstadter the correct answer is usually "mu", a Japanese word alleged to mean "Your question cannot be answered because it depends on incorrect assumptions".

Hackers tend to be sensitive to logical inadequacies in language, and many have adopted this suggestion with enthusiasm. The word "mu" is actually from Chinese, meaning "nothing"; it is used in mainstream Japanese in that sense, but native speakers do not recognise the Discordian question-denying use.


Thanks to Thrakem for the source of this definition.

A monk asked Joshu, "Does a dog have the Buddha nature?"
Joshu retorted, "Mu!"

by IKEA January 21, 2004

mus

someone that never fails to put a smile on your face

he makes me laugh, he's my mus

by flowerpower January 22, 2005