OMB 

The short term for "Oh my Bieber" To say something is new or big about Justin Bieber.

OMB!!!! Justin Bieber's concert is only in 4 days!!!!

OMB by rlb123 August 25, 2010

OMB 

Oh my bad

Lonelygirl17: No way!
Dannyboy32 has gone offline
Dannyboy32: OMB. bad internet.

OMB by Sha-zamm September 26, 2008

OMB 

alternative to 'OMG' (oh my god) used by MCR fans and members of the MCRmy, when in schock or awe.

Replaces the traditional 'god' of 'OMG' with 'Bob', as in Bob Bryar, drummer and much worshipped member of My Chemical Romance

MCRmy kid1: "Teenagers is the next MCR single!"
MCRmy kid2: "They've already shot the video!
MCRmy kid3: "OMB!!!"

OMB by HollyWood[MCRmy] December 24, 2008

OMB 

Oh My Bama; Like Barack Obama! use in place of omg!

OMB! Obama is going to be the next president!

OMB by Sammmmm :) May 15, 2008

OMB 

n. one-man-band; one person who plays multiple instruments

v. to perform a song in OMB style

n. Steve is totally an OMB, he plays like a hundred instruments.

v. http://music.todaysbigthing.com/2009/01/09
Check out this guy! He's OMBing the Wind Waker theme!

OMB by Anonuuu January 12, 2009

OMB 

Oh My Boobs or OMT, "Oh My Tits".
Can also be used as OMFB.

"Josh dumped me,"
"OMB! Really?"
"Yeah, that punk bitch".

OMB by Julia and Colin February 11, 2009

OMB 

Oh my buddha, used by asians, cool people, rebels, and people who understand that saying oh my God is a sin. It is a basic alternitive, and funnier to say out loud.

No jkjkjkjklolol! I <3 ur effin make-up OMB i love your hair! Is that a new tatoo? Did that peircing effin hurt? No jkjkjklololol!

OMB by 極度のメガ驚くばかりの人 May 11, 2009