Slang: The abbreviation of the question "Do you know what I am saying?", usually employed by urban street youths or douchebag assholes
"Damn, that shawty is fine! Nomsayn?"
ayon kay cumdumpster37 ika-26 ng Marso, 2012
1 more definition
Short for, "Know what I'm saying?"
"She be hot as f**k nomsayn?
ayon kay gbrodee ika-09 ng Abril, 2015