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3.
sao
means "yeah" in Samoan
We go cruize tonite. Oh Sao!
by Pili February 15, 2006
 
1.
SAO
Stands for an anime series known as Sword Art Online which was originally a Light novel written by Reki Kawahara.
Person a: Have you seen SAO?
Person b: yeah, it was awesome.

Person a: Have you seen SAO?
Person b: yeah, it was a piece of shit.
by otakusu May 19, 2013
 
2.
SAOS (sah-ohs) (pronounced the way its spelled) An acronym representing the saying "Some All Out Shit". This generally means the idea of someone/something going "all out" to their fullest ability to create something crazy, amazing, or intense.
Jacob: we should totally throw a party at Duncan's mansion in Palm Springs!!
Kenny: fuck yeah, its got a pool & a massive backyard, all we need is some bottles, weed, drugs, lions, & fireworks.
Jacob: SAOS!
by JetsonsFTW January 11, 2012
 
4.
aka STANK-ASS-ODOR..a person or random smell that is unbearable and if smelt can cause fainting or comas
wtf is that S.A.O. i've been smellin it for weeks!!
by christophorus September 06, 2010