msg

basically a short ammagram used for message

Person1: Dude did you get that msg from me allready?

Person2: Sorry man, I haven't checked my mail yet.

by ibrowmew May 28, 2010

MSM

Men who have sex with men. Used to include those who engage in homosexual behavior, but do not identify as gay.

The CDC is doing a study on sexual practices among MSM.

by dny December 2, 2004

S.M.S

Sleepy Mexican Syndrome

A diagnosis for excessive sleepiness at all hours of the day

I was so tired in class I feel like I have S.M.S

by The Worldwide Indian February 27, 2009

MSY

Masterbating to the Sounds of Yanni; often used to mean "nothing much" or "just screwing around"

Hey, what are you doing tonight?
Nothing much, just MSY.
Cool.

Hey, you busy?
No, just MSY.
Oh, I see.

by FZad May 23, 2006

P.M.S.

Pre-Mestrual-Syndrome...When a girl is about to get her period and she gets pissed off at everything.

Jen- "Screw You!!!" "Go the fuck away you annoying little bitch!"

Mike- " Wow she's P.M.S.ing.

by U K1LL3D K3NNY May 5, 2010

msf

Male Seeking Female online dating

"MSF, huge ugly teeth, glasses and no life. Looking for one night stands or a f*ck buddy even though I'm the ugliest man on the internets."

by Mya Kumar August 6, 2007

msn

a program which used to be good for talking to people you are close to but now used as a massive chav tool by chavs who go online whth such screen names as "my gangsta kuzn" or "(insert name here)ere, luvin ?????? 4 lyf"

lets go on msn coz were bored and dont have a lyf

by scousemc November 22, 2006