What does OSO mean?

Other Significant Other



Other definitions of OSO:

All of our slang term and phrase definitions are made possible by our wonderful visitors. If you know of another definition of OSO that should be included here, please let us know.


How to use the term OSO:

There are no example uses of OSO at this time. We would greatly appreciate your contribution if you would like to submit your own!


More slang terms:

HWSNBN

HWSNBN

He Who Shall Not Be Named

OOTQ

OOTQ

Out Of The Question

ROTFLMMFAO

ROTFLMMFAO

rolling on the floor laughing my mother f**king a** off