MST

Acronym for "Metric Shit Tonne"

John: "I've been away for a week, and had an MST of work to catch up on today!"

by ChipNZ November 7, 2011

MSPI

Meat Spinner Prevention Incorporated (MSPI) is a corporation of people, who do not meat spin others, and try to prevent meat spinning. They have support groups, and oporatives on-call to come help you with any meat spinning prevention emergencies.

Their motto is
"To spin another is quit a blunder,
cuz well kick you're butt, then punch you in the nuts"

To become a full fledged member of the MSPI you must only ask, and then go through testing to make sure you're not part of the NAAMS (National Assosiation for the Advancement of Meast Spinning)

They were founded recently by Thomas Fagan and Carter Bosch. They are dedicated to the eradication of all meat spinning. The official color of the MSPI is maroon.

MSPI operative: "did that kid just try to spin you?"
lady: "sob, yes, sob"
MSPI operative: "don't worry babe, i'll beat his ass bad"
lady: "thank you MSPI!"

by Tfagan December 6, 2007

MST

duPont Manual High School's Math Science Technology program. Pure evil. With Mr. and Mrs. Z and Sha-- Ms. Johnson.

DUDE did you have all of your MST classes today?

by manualfreak March 20, 2008

MSN

Some stupid thing that people go onto to take time out of their dull, lifeless lives.....something with emoticons, and something to use to talk to your best friends girlfriend, making her feel jealous, because she lives in a different time zone....mwahahaha

Stupid butterfly wont FLAP!!!! Msn, help me puh-leaze....

by Anonymous June 7, 2003

MSN

To sexually harrass someone on a messenger program.

If you don't stop fucking MSNing me I'll tell the cops!

by k9norn November 11, 2003

MSC

A bunch of heros from the shit hole of Welland who had nothing better to do than make a fuckin mockery of the city and the teenagers in it, and god it was fucking awesome

just a bunch of fucks-MSC

by smokeganj November 30, 2006

MSF

My Space Friend; People you add to your profile that you call friends.

Jenny is Kirsten's newest MSF.

by Jenn W. August 3, 2007