Similar to the term chummer Used to define someone as a friend or pal. Very common with shadowrunners
by Drekhead October 8, 2017

OMA! My friend is raping my mother! What to do?
OMA I JUST PWNED THAT TEST!
OMA YOU HAX0R STOP DELETING MY FILES!
OMA I YOU ARE SLEEPING WITH MY GIRLFRIEND!
OMA! Mi amigo esta aprovechando mi papa! QUE LASTIMA?
OMA I JUST PWNED THAT TEST!
OMA YOU HAX0R STOP DELETING MY FILES!
OMA I YOU ARE SLEEPING WITH MY GIRLFRIEND!
OMA! Mi amigo esta aprovechando mi papa! QUE LASTIMA?
by COOLRUNNINGS567@yahoo.com May 5, 2004

Hey, did you see the new wheels Mohammad just bought?
Yeah, Fatima was all like 'OMA! That's amazing!'
Yeah, Fatima was all like 'OMA! That's amazing!'
by ScotchandDietinDXB April 17, 2013

Acronym for "One Man Army". Examples in pop culture include the song OMA by Grand Theft Bus, a Canadian, East Coast 'Indy Rock' band.
by Chem Eng Milne June 11, 2008

OMA is essentially the Pokemon equivalent of OMG, using "Oh My Arceus" instead, considering Arceus is the God of Pokemon.
by Flintrosexual August 20, 2010

by bluedo June 13, 2012

I'm from Omaha.
by Kryten 2x4b May 5, 2003
