What does OSO mean?

Other Significant Other



Other definitions of OSO:

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How to use the term OSO:

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More slang terms:

IKMTY

IKMTY

I know more than you

COFL

COFL

Collapses on Floor Laughing

AYL

AYL

Are You Listening

O.O

O.O

Very valid, pithy, suiccnct, and on point. WD.