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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References:

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More slang terms:

ILUMAMED

ILUMAMED

I love you more and more every day

QFE

QFE

Question for everyone

IWYINYILY

IWYINYILY

I want you, I need you, I love you