Not only do people commonly use it for "save our ship" and "save our souls," it is also believed to mean "send out sailors." SOS is really just a way of remembering the international morse code distress signal, however, because 3 dits, 3 dahs, and 3 dits happens to translate to SOS. Wikipedia has a very interesting article on the subject. Check it out at http://en.wikipedia.org/wiki/Sos

It's an internationally recognized distress signal in radio code,it's a call or signal for help cowboy...