sm
Abv. for Sales Mark.
The logo has a SM at the right.
by Scratch DJ February 04, 2005

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Top Definition
SM
The abbr. of Sado Masochism. A sexual act involving two or more participants whom having overwhelming amount of desire to either sexually torture others or be sexually tortured by others. Also associated with BDSM.
My friend had went to a SM party last night; that's why they stayed home today because it is a tiring activity.
by jongu January 27, 2004

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sm
a short version of sex machine
-Hey, do you see Robin over there? He's a total sm. Every cutie in the town has tried him.
by rainy day today November 05, 2010

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sm
Sex Machine (mostly used in chats)
- Hey, do you see Robin over there? He's a total sm.
by tingting44 November 04, 2010

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Sm
Shorted version of so much
"I hate math class sm."
by Ibl33dwh1t3andblaCk May 17, 2016

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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

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SM
Stage manager (in a theatrical production).
Kate was the best SM so far this year.
by Margo Roth Spiegelman II May 02, 2010

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sm
Abbreviation for social media.
Girl 1: Did you see what Gloria posted on Facebook?
Girl 2: I don't get on sm.
by KingSJA98 June 09, 2016

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