smo is an acronym for "sarcasm may occur", to state the not always so obvious texty sarcasm out there, used whenever a smiley/emoticon doesn´t quite cut it. :P
1. I know losing your eyebrows is horrible, but at least you're pretty smo
2. person 1: hey can I borrow your car, while mine is at the workshop?
person 2: yes by all means wreck mine too then none of us can drive... smo
3. I just love that I can always depend on you, knowing you got my back when I need it, smo fucker
SMO (Special Military Operation) is the official term for Russia's direct involvement in Ukraine since 24th of Feburary 2022, which is used by Putin himself to refer to the war.
"I have decided to conduct a Special Military Operation"
"Thoughts on SMO?"
"Oh, ah, SMO, zombie is eliminated, hey!"
(suck me off) A word used when in desperate need of sucking off
8-18 girl: Hey, you're old enough to be my father.
Cone: smo, bbg.