Acronyms dictionary OMSN What does OMSN stand for? OMSN is used by Grateful Dead fan's (or Deadheads), to refer to their song "One More Saturday Night." Related words: Juggalo phan whippets Examples of OMSN Come the rockin' stroke of midnight, whole place is gonna fly #OMSN @fat_man_rocks, July, 2016 No backdrop behind Ratdog. Just the simplicity of the load-in door for the lights to dance on. Bobby singing his songs with passion #OMSN @fractalgal, July, 2014 39 years ago today @GratefulDead played at UMass Amherst in Amherst, MA, on Brent Mydland's first tour with the Grateful Dead. The encore was Shakedown Street>OMSN. @lemieuxdavid, May, 2018 SEE MORE EXAMPLES Who uses OMSN? 45Cat Just Added shelfie, ACAB, yeet, Karen, BIPOC Note This is not meant to be a formal definition of OMSN like most terms we define on Dictionary.com, but is rather an informal word summary that hopefully touches upon the key aspects of the meaning and usage of OMSN that will help our users expand their word mastery.