Definition of SIU

The Meaning of SIU

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The Top Definition of SIU

The most popular meaning of SIU is: suck it up

What Other Meanings of SIU Are There?

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What is SIU?

SIU is suck it up

SIU Means

The definition of SIU is "suck it up".

SIU Definition

The meaning of SIU

SIU means suck it up.

Now you understand the definition of SIU - SIU means "suck it up".

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

  1. SIS - sister
  2. SIS - Snickering in silence
  3. SIT - Stay In Touch
  4. SIR - Strike it rich
  5. SIP - Skiing In Powder
  6. SIL - son-in-law
  7. SYU - sex you up
  8. KIU - Keep It Up
  9. LIU - Look It Up
  10. SIC - said in context
There are no other slang words that contain acronym SIU, or the meaning of SIU.