1 definition by Shaun McKenna
Slightly-Morbid-Observation. Used in place of lol (laugh-out-loud), when some form of humour is intended, but laughter would obviously be inappropriate.
Person A: Oh man, that test just absolutely killed me.
Person B: Me too, it really deserved to be written today on 06/06 at 6 o'clock. SMO.
Person A: Good call man, good call.
Person B: Me too, it really deserved to be written today on 06/06 at 6 o'clock. SMO.
Person A: Good call man, good call.
by Shaun McKenna December 2, 2007