means "Oh shit nigga". meant for black people who think "OMG" is to white.
"OSN did you see that chick?!?"
A black version of OMG
stands for: Oh Shit Nigga
Devin: Damn, that girl is a double D!
Zavier: Osn! Foreals?!
OH SHIT NIGGA
4 black people to use instead of OMG
OSN run that nigga gotta a gun
Online Social Network
See, Perils and Possibilities of Online Social Networks
"Moreover, if it was posted publicly on an OSN site or blog..."
Facebook is an OSN
A tv provider in the UAE that only shows episodes which are old Although they do show good shows
OSN or du or etisalat
For blacks, omg was officially ruled for whites. whenever a black person would use "omg" they would instead use "osn" which means "Oh Shit nigga!".
White person example:
Guy 1: Hey did you do biology homework?
Guy 2: Omg i totally forgot about that.
Black people
Guy 1: Ay did you do biology?
Guy 2: Osn, i forgot all about that.