Adjective
(US, slang) Out of it, lost; bewildered, stupefied, or daydreaming, due to intoxication, distraction, aimlessness, etc.
Used other than figuratively or idiomatically: see lost, sauce.
Source: en.wiktionary.orgThings are fluid in this world, and if you don't remain fluid, you get lost in the sauce. Talib Kweli