What does SO mean?A slang acronym for "Significant Other", a relationship partner.
Other definitions of SO:
- Abbreviation for "significant other". This is a gender-neutral way to refer a partner in a relationship, like a boyfriend or girlfriend.
- A transition word that can imply many things, including: 1) "Anyway...", 2) "Okay... who cares?", 3) "In a manner thus", among other things.
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How to use the term
Let me run it by my SO. We're going on a date that night, so it might not work.
Me and my S.O. have been together for a few years.
So... do you have anything else you can show us?
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More slang terms:
Kisses and hugs
Instant Messenger enVironment
Love You Love Me
Most usages of "OTN" on the Internet these days are of Japanese origin and refer by sound-alike to the Japanese slang terms "ochin" (child's testicles) and (especially) "ochinchin" (child's penis). The term is especialy used in the phrase "gigantic OTN" meaning that a boy has a very large penis for a person of his age. As of mid-2015, the term OTN is popular primarily because of the song "Gigantic OTN" (look it up on YouTube).