Osn 

OOOh SHIT NIGGAAA

Started By The Basketball and Track team of UC

Kid1: Osn Did u see rayray he just ran a 16.1 in 110 hurdles.

Kid2: Osn He fast as fuck for his first year

Osn by Mmmmmmmmm18 June 3, 2009

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

OSN by Ak99 July 17, 2011

OSN! 

"Oh shit nigga!"

A Black version of "OMG", which IS too white of a term to use for Blacks.

An acronym not meant to be used by anyone who isn't Black.

OSN! I lost my "Chris Rock: Bigger & Blacker" DVD!

OSN! by Oh man. o3o September 19, 2009

osn! 

"OSN!" is an abbreviation for the commonly used ghetto phrase..
"Oh shit nigga!"

Anthony & Cuta were playing XBOX for 12 hours straight when Anthony finally dominated the game and made Cuta wish he had won.
Anthony: OSN! I dominated that game.
Cuta: What is this a contest?
Anthony: In your face!
Cuta: Wish I drove a soup kitchen van.

osn! by Madison Ryder June 16, 2007

Original OsN 

a true orignal sand nigga, its a new type of slang term used to describe one that has had hella fun during the summer and is now living it up in a penthouse, OSN style

you see that Original OSN jeffy, damn if i see that osn here... imma thorw up my osn sign

Original OsN by Johnny Mohagany August 8, 2006

osnapitz 

osnapitz means Oh Snap It's...

Get it? Like setting your username as "osnapitz(your name)"

Example- osnapitzkate (Oh Snap, its Kate!)

osnapitz by Mrs. Jake Bieber Miller March 14, 2013

osnapitzari

ariana grande's first ever YouTube channel where she often made skits with her friends. started in 2008

"do you like ariana grande?"
"yeah i used to watch her on her channel osnapitzari all the time!!"

osnapitzari by badlands September 16, 2016