"Sex On the Side." When you cheat while in a committed relationship.
My wife didn't love me enough so I had to call Jenny and get a little SOS.
Someone
Over
Shoulder
To be used when in online discussion and another party (whom you do not want to see anything suspicious being sent from the partner(s) you are having the conversation with)
Useful when the parent walks in and then there is no need for suspicious minimizing on the computer screen.
Tiff: Timmyyy, how you feeling?
Tim: Oh baby, i'm in the mood ;)
---Tiff's father walks in---
Tiff:Wait, SOS
Tim:Ok, so, about the science homework due tomorrow....
SOS is an acronym for "sluts on sunset"
it's commenly used by people in los angeles who populate sunset blvd, or the "sunset strip," a street which is accompanied by many fine women and/or sluts on thursday, friday and saturday nights.
"hey, there's nothing really to do tonight but to go see SOS. maybe we can hit up dublins or argyl while we're at it, or even the body shop"
or you can simply say "im gonna SOS tonight"
It doesn't really mean "Save our Ship" anymore, because whose ship really needs to be saved? Unless, of course, it is a cruise ship being attacked by pirates, as was the case recently near Africa. It really means "Save Our Shit!", any shit in peril.
"Oh no, my parents are here. Quick, SOS!"