Definition of SM

The Meaning of SM

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The Top Definition of SM

The most popular meaning of SM is: Senior Moment

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What is SM?

SM is Senior Moment

SM Means

The definition of SM is "Senior Moment".

SM Definition

The meaning of SM

SM means Senior Moment.

Now you understand the definition of SM - SM means "Senior Moment".

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What does SM mean? SM is an acronym, abbreviation or slang word that is explained above. If you ever forget what SM means, just come back to and we'll define any acronym you need help with.

  1. SME - Subject Matter Expert
  2. RM - Remake
  3. SW - so what
  4. SMD - suck my d**k
  5. SMC - suck my c**k
  6. SB - Smiling back
  7. SB - Somebody
  8. SW - Software
  9. SBM - Single Black Male
  10. RM - Room
  1. (!) - Sarcasm
  2. *S* - smile
  3. -) - Smile
  4. / - Sarcasm
  5. /S - Sarcasm
  6. 420 FRIENDLY - Cool with smoking pot or marijuana. Used in a lot
  7. 420 FRIENDLY - Person who likes smoking pot
  8. 420 FRIENDLY - Usually used in personals and on Craigslist, 420 f
  9. :-) - Smile
  10. :/ - Sarcasm