OSN

means "Oh shit nigga". meant for black people who think "OMG" is to white.

"OSN did you see that chick?!?"

by jakemebabe101 May 25, 2009

OSN

A black version of OMG
stands for: Oh Shit Nigga

Devin: Damn, that girl is a double D!

Zavier: Osn! Foreals?!

by Hagigamafuh May 25, 2009

OSN

OH SHIT NIGGA

4 black people to use instead of OMG

OSN run that nigga gotta a gun

by adrian kilpat. July 5, 2009

OSN

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

by anona. December 5, 2011

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

by Ak99 July 17, 2011

Osns

On some nut shit

Yo you really osns you a weirdo

by cimarie December 3, 2018

Osn

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.

by DatNigga4rmOuterspace May 25, 2009