An acronym for the derogatory term, saucey orifice, used instead of "significant other" to designate a woman that's kept around for physical pleasure. Can be used cladestinely in front of said S.O. when speaking to a friend who is "in the know". Said S.O. is lulled into a false sense of security thinking that they are your "significant other". (Only heterosexual use allowed as any other orifice is only saucey after the fact.)
Short for "Snap Off." An S.O. is a female, usually overweight and unattractive, who finds it difficult to find a male partner who will engage in sexual intercourse with her. When the S.O. finally "gets lucky", she will ride his genatalia so hard, it will snap off under the pressure.
"Oh man, you hooked up with a real ugly chick last night."
"I know had to ice my nuts because she was a real S.O."
By Dione
S.O.
A person who alternates between Mr. Right and the Douchebag Next Door. You can recognize him by refusal to communicate while in a relationship and by a wrecked set of priorities. This guy will become a permanent asshole a month before breaking up with you.
The epitome of a S.O. would be Sean Oliver at UPenn, but S.O.s can be found throughout the country. Most abundantly at college campuses and local bars.
