M-200

The CheyTac M-200 Intervention is a bolt-action sniper rifle chambered for the proprietary .408 CheyTac round, claimed to be among the most accurate sniper rifles on the market with an accuracy of 1 MOA up to 3000 yards. It is currently being tested by the US for possible integration into its armed forces.
The US is testing the M-200 in field trials
by C4_Cookie January 07, 2012
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M-Material

M-Material, is a state of mind, where you are totaly in the know and on the ball, youre gonna get married and shit, youve got big tits and an alright face, so will find it avergely easy to get a husband, drama surrounds you a bit but you dont give a shit cos ho hum hum ho thats life.
Dave: you know that girl over there.. I think shes real M-Material... Shes got big tits and an alright face... Should i propose?

Stanley: Yeah brosephh go for it
by mmmmzzz.z.z..zz....zz.....z.. December 18, 2008
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The "M" Train

1)n. To get high on Marijuana.

2)adj. To be high on Marijuana

This term was originally used by students at Reseda High School.
1) Hey Guille, lets get on THE "M" TRAIN.

2) Are you on THE "M" TRAIN?



by MartinReseda1992 January 03, 2009
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S and M

Sadomasochism. When sexual gratification is recieved by inflicting and/or enduring painful activites, this does not have to be exclusively during intercourse. Whips and chains are often considered S&M paraphenalia, as well as bondage collars, spiked jewelry, etc.

May also stand for slave and master.

See also BDSM, bondage, S&M
Ginny and James are into the S and M scene.
by The Pessimist March 21, 2006
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m shadows

m shadows is the lead singer of Avenged Sevenfold the best goth-punk rock band ever to walk on this planet. hes got alot of tattoos and is very muscular.
my god that guys got arms like m shadows!
by noodles_rocks_ass May 30, 2006
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M-40A1

The weapon widely regarded as the "Ultimate Sniper Rifle". Basically, it's a modified Remington 700 rifle. Introduced late in the Vietnam War.
"That's an M-40A1 dude."
by Chris G. October 23, 2004
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B M

Also an acronym for bowel movement. Used in in assisted living or healthcare environments typically.
Did you record the time of his last BM?
by CJ August 12, 2003
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