OMSMN 

oh my shizzle my nizzle

INVENTED BY RILEY.

on msn;

'he's like, more famous than the other guy'
'OMSMN'

OMSMN by hayleytompope October 21, 2008

osmn 

Oh Shit MY Nigga!..

Sam:What The HEll IS Dat..?
Josh:OSMN..Dats A Rat..!

osmn by In LOve Wih Christopher November 22, 2009

ommnee 

on my momma & everything else

We'll go soon ommnee

ommnee by wholeasschild October 19, 2018

Ommn 

A hood-rat acronym meaning “On my mama nigga” which is typically used in agreement or as a swear as in “put it on your mama”

*Used in texting*
Jamal: “Aye cuh that shit hard ain’t it”
Daquintus: “Ommn”

Ommn by YouGayNigga May 26, 2022

omsmg 

stands for Oh my sarah michelle gellar. derived from "omg" but substituting god with sarah michelle gellar. a very controversial comparison.

omsmg! that shirt is soooo cool!!

omsmg by Spike_2009 December 15, 2009

omsun 

A truly unique guy. He is loyal and kind and wont hesitate to f*ck sh*t up when protecting friends and family. A real genuine man.

HEY OMSUN LETS GET A DRINK AT THE BAR AFTER WORK.

omsun by kayemcie May 4, 2020

OMSM 

on my step momma- when ur step mom is more involved in yo life, use omsm

“we boutta square up OMSM”

OMSM by nat.stole.yo.bih July 6, 2021