Laugh Out Silent; it's an
oxymoron...usually used if you're chatting
online at work and something is said, but you don't want to
LOLBoth are at work...and the online convo goes like this:
Janice: Tell me why this girl is singing in her cubicle all loud and
stuff.
Janice: Thing is she sound a
hot mess
Maurice: LOS :-D Tell her to stop