S.M.C. 

A real killer from the hood. Especially from Oakland or Tijuana. Usually can be seen kicking a gerg's ass. He most commonly has long hair and is chubby, but dont let his appearence fool you, these type of people are most commonly schizophrantic lunatics.

That nigga is one crazy S.M.C.
Damn that S.M.C. i fucked yesterday rode me tough!

S.M.C. by a real A.M.C. July 16, 2008

S.M.O.B. 

Acronym for the phrase "suck me off bitch"

Oh look at my watch, now that Grey's Anatomy is over its time to S.M.O.B.

S.M.O.B. by PutIt2Work October 11, 2007

S.M.B. 

Sniff My Bung. Short for Sniff My Bunghole.

The little guy told the bully to S.M.B. This left the bully baffled.

S.M.B. by FishChair August 17, 2007

S&M Jock 

Is a sub culture most often found in the gay community where sporty people (most commonly boys) dress in dark monotone sports wear with a bondage like s&m accessories.

The s&m jocks look so hot in that gay pride parade

S&M Jock by S&M Jock March 12, 2015

S-M-H

Sanky Mc howe it is a person that looks like skank and wants to be one

Sanky Mc Howe it is whatt is says

S-M-H by Scott April 25, 2005

S.M.E.W.T 

S.uper
M.assive
E.pic
W.in
T.oomuchtohandle

The degree of Win surpassing Epic Win, and Epic Fucking Win by miles, this should only be used in the presence of a miracle or things that are mind blowing beyong any recognition.
see: epic win

Dude1: "oh shit dude, did you see that guy? he's fucking bullet-proof! he took like ten bullets and he still took out all of those gang members!"
Dude2: "S.M.E.W.T. dude, that was fucking S.M.E.W.T.!"

S.M.E.W.T by mr. hilarious May 12, 2010

S.M.R.T. 

A nice way of saying that someone is so stupid, that they don't even know how to spell smart.

"I'M S.M.R.T.! YAAAAAY!!!"

S.M.R.T. by LAURENANDCHELSEA May 11, 2006