What does SOS stand for? “Save our souls?” “Save our ships?”

Technically, it stands for nothing. You see, SOS isn’t an acronym, it’s a backronym, where a phrase is smooshed into a pre-existing set of letters. So, how did SOS come to mean save our souls? Because SOS was easy to transmit in Morse code in case of disaster. The fact that the phrases “save our souls” and “save our ships” fit into SOS was a nice coincidence.