noun - SOS is the International Morse code distress signal; the overscore indicates that the normal gaps between the letters should be omitted. It is used as a start-of-message mark for transmissions requesting help when loss of life or catastrophic loss of property is imminent. Other prefixes are assigned for mechanical breakdowns, requests for medical assistance, and a relayed distress signal originally sent by another station.
SOS also is an acronym for Save Ourselves Swims or circumnavigation swims around endangered low-lying islands around the world that will be significantly impacted by rising sea levels due to climate change.
Coined by Steven Munatones circa October 2018.