OMN 

On my nerves

Man she cute but she get omn sometime

OMN by johnsmith2010 July 24, 2015

OMN 

on my neck

Jenni : Sara had me omn last night ! She was so funny

OMN by okkool April 12, 2015

OMN 

O my nigga

white nerd: hey watchu get on that math test yesterday?

Black dude: 97

whitey: OMN

Black dude: imma beat u down flourcake cuz if u aint black u cant be talking like dat

OMN by cassiedahobo June 28, 2009

Omn 

On my niggas, which means they aren't lying

"Stamp it"
"Omn i got you"

Omn by nibba nine March 26, 2020

omn 

abbreviation for Oh My Noodles, another way of saying u r surprised.

person 1- I JUST ATE MYSELF

person 2-omn!

omn by omnperson August 3, 2010

OMN 

stand for Oh My Noob...a phrase commonly used in videos games or to explain something someone has done incorrectly

OMN=Oh My Noob
What a N00B!

Matt:You suck at football
Tyler: Yea your a N00B
Json:Yea you fuckin N00B!
Pitnat:I hate N00BS
Cory G:Yea they suck cock
Brit:I wanna drive!
Samantha:No Brit remeber what happened last time?
RanD:Wanna get high?
Danny:Fosho

OMN by oMNxTyLeR April 23, 2009

OMN 

Oh my nuts

OMN, I left my wallet at home.

OMN by ga231 January 11, 2010