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.