Definition of SU

The Meaning of SU

You have found the definitive source for the meaning of SU. This page contains all the definitions of SU, crowd sourced, moderated and curated by real people who care about the true definitions of SU.

The Top Definition of SU

The most popular meaning of SU is: Shut Up

What Other Meanings of SU Are There?

  1. Super user
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What is SU?

SU is Shut Up

SU Means

The definition of SU is "Shut Up".

SU Definition

The meaning of SU

SU means Shut Up.

Now you understand the definition of SU - SU means "Shut Up".

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

  1. PU - that stinks
  2. BSU - Boring Status Update
  3. ST - Stop That
  4. SN - screen name
  5. S - Yes
  6. SFU - shut the f**k up
  7. SS - Selfie Sunday
  8. SS - So sorry
  9. SS - Super Story
  10. TU - Thank you
  1. *O* - Confused, surprised, shocked
  2. 0 - Surprised
  3. 0.0 - Surprise
  4. 420 FRIENDLY - Usually used in personals and on Craigslist, 420 f
  5. 459 - 459 means burglary. It's a slang word usually used
  6. 4SHO - For Sure
  7. 8-) - Cool (sunglasses)
  8. 88 - In amateur radio, 88 is a salutation meaning 'Love
  9. :0 - Surprised, shocked
  10. :O - Surprised