ok the actual definition of "OMFB" is "oh my franking bob". it got started (as far as i know) on theblackparade.net, as an alternative to "OMFG" that some MCR fans enjoy saying. also "OMFG" can also mean (for frerard supporters/MCR fans in general) "oh my franking gerard" and "OMG is of course "oh my gee/gerard". so...yeah. thats wat it means deal with it.

OMFB is that guy over there looking at me???? OMG!!!!!

omfb by queen of hearts April 6, 2008

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omFB

The term you use when you forgot to check Facebook (FB) or your "social network" when something somewhat dramatic was posted... and you totally missed it.

Girl 1: " did you here about what happened to laurie?"

Girl 2: "no what happened?"

Girl 1: "she's pregnant!"

Girl 2: "omFB!!! how did i miss that!?!"

omFB by meesheethewatergiant February 17, 2010

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OMFB

abbreviation: Oh my fucking Batman! (used to express surprise, alarm, etc. esp in emails, text messages, etc)

Also, omfb, omb.

Jeff Albertson @ComicBookGuy 5s #OMFB Jim Lee and Frank Miller are making cameo appearances on Gotham (2014) as well as The Big Bang Theory (2007)

OMFB by Tsarstepan April 2, 2015

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OMFB

Oh My Fat Bitch... Basically I got tired of saying OMFG and we know what it means. It's offensive and people yell at me for using it. So I found something else a little less geared toward religion and something everyone loves to talk about. Fat B-Otches. OMFB allows for a comfortable laugh here an there when speaking. It also can be used in offensive/defensive situations where skinny people or less fatter people may be attacked.

OMFB are you really wearing that? OMFB are you really going to eat that? I can't stand this, OMFB. Or simply OMFB (If you happen to see a mean fat girl.)

OMFB by Jeffy Georgios April 28, 2010

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