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12.
MS
Abbreviation of the term "main stream".

Generally used to put someone down.

This put down could be directed at someone who listens to the top 40
or watches shows on a popular channel,
3 years after they originally aired on a lesser known, but better channel.
It could also be a general statement for someone who just does what is
"in", "hip" or "cool", or just because everyone else is doing it.

The opposite of what some fags would call "underground".
"Pussycat Dolls? That is so MS"

"You watch Dexter on channel 10?
Well I watched it on showcase, before it was cool.
Man, you are just so unbelievably MS!"
by Jafooli.So.Cooli October 15, 2008
 
1.
MS
The term for Monkey Scrotum.
Bully: but peter, I have MS!

Peter: You hear that chris? Now he's bragging that he has a monkey scrotum!

Chris: NO DAD!
by MSooRi April 27, 2009
 
2.
MS
A persn who has a Monkey scrotum
Dude I have MS, I might die. Dude You have a Monkey Scrotum
by Mac tre October 03, 2007
 
3.
M.S
Monkey Scrot
Oh man, have you seen that old guy, he's got a huge M.S

Jay lenno has a M.S on his face
by desmund tootoo July 16, 2010
 
4.
MS
Multiple Sclerosis (MS) is the most common disabling neurological condition affecting young adults. Around 85,000 people in the UK alone have MS.

MS is the result of damage to myelin - a protective sheath surrounding nerve fibres of the central nervous system. When myelin is damaged, this interferes with messages between the brain and other parts of the body.

For some people, MS is characterised by periods of relapse and remission while for others it has a progressive pattern. For everyone, it makes life unpredictable.
by Antony Johnston April 07, 2006
 
5.
an abbreviated form of the phrase My Sack. The term M.S. originated in small towns. Lack of energy in speaking the whole phrase being the main identifying factor for its origin.
Get over here and shave M.S.
by trachlor October 20, 2006
 
6.
MS
Very common abbreviation of Microsoft. Also M$, Micro$oft, Micro$haft.
I just installed another MS security update.
by amnca November 05, 2003
 
7.
More Shit. Also see B.S. (Bull Shit)
MHOTY! You already got a B.S. and now you are aiming for M.S.
by MIT-GUY August 11, 2012