A boxed "SOS" — the international distress signal turned emoji, used literally in emergencies but far more often online as exaggerated hyperbole for minor crises ("SOS I forgot my charger"). SOS itself has no acronym meaning; it was chosen in 1905–1906 purely because its Morse code pattern (··· − − − ···) is simple and unmistakable, not because it stands for "Save Our Souls" as commonly believed.
Keywords: button, help, SOS