OMGRG 

Oh my God! (removes glasses).

Used when something particularly worrying / surprising / unthinkable just happened.

Scientist #1 - our sensors indicated the next earthquake will have its epicenter a couple of kilometers from here, beginning in 30 seconds from now.
Scientist #2 - OMGRG (looks at screen with results)

OMGRG by GloriousMosquito June 15, 2018

Omgyg2bk

Omgyg2bk is text speak for Oh my gosh you've got to be kidding.

Example:

Chuck: Seema have you seen the news? The worlds been took over by aliens who plan to kill half off the human race and keep the rest for slavery.

Seema: OMGYG2BK!

Chuck: Just kidding you fool.

Seema: Whatever *walks off annoyed*

Omgyg2bk by Tallulah DaSouza June 16, 2010

OMGraham 

OMGraham is a term of expression used when one is struck by the dreaminess of a tall, handsome, South African gentleman. It is also synonymous with OMG(osh)/OMG(od).

OMGraham, that episode of Lost had zehbras =]

OMGraham by elloc1elo5 December 17, 2009

OMGgasm 

when you say "omg" 5 or more times within a matter of minutes

Bill: omg omg omg omg omg omg omg

later that day

Bob: did you see Bill having an omggasm earlier?

OMGgasm by The_wtf December 17, 2008

omgbg 

OH MY GOD BASED GOD

omgbg

omgbg by basedgodd April 17, 2011

omggq 

A compilation of some overused leet speak. OMG , GG, BBQ. Used to express extreme discontent in a conclusive fashion

OMGGQ ! I cut off my finger.

omggq by AzTeC April 4, 2005

OMGROFL

When another person does something that is so outrageously funny or embarrassing you just can't help but roll on the floor laughing.

"OMGROFL! Did you see that?"

OMGROFL by Felesia December 16, 2008