What does SIU mean?

suck it up

SIU

Other definitions of SIU:

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How to use the term
SIU:

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More slang terms:

Fuck

Fuck

A catch-all slang curse word that can mean many things. Often used as an interjection to express anger or disgust, it can also indicate sexual intercourse or unjust treatment/meddling.

TWIU

TWIU

That's What I Understood

KMAB

KMAB

Kiss my ass bitch

NSFU

NSFU

no sex for you