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OMG

American  
omg, or OMFG

abbreviation

Slang.
  1. oh my (fucking) God (a euphemistic initialism used to express surprise, alarm, etc., without explicit vulgarity).


OMG British  

abbreviation

  1. Oh my God!: used esp in emails, text messages, etc

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of OMG

First recorded as O.M.G. (Oh! My! God!) in 1915-20; in a letter from Admiral of the Fleet Lord John Arbuthnot Fisher to Winston S. Churchill; popularized from its use in digital communications

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Being drawn at home to Chelsea is creating excitement amongst fans, with one commenting: "OMG Wrexham is definitely capable of beating any Premier League team. I can't even imagine how excited I'll be if the Red Dragons win."

From BBC

“Haa? OMG dear we have to talk about all this first,” the woman wrote.

From The Wall Street Journal

“I apologize that you’re going through this,” the representative said, which was nice but OMG.

From The Wall Street Journal

OMG, your mom let you dye your hair!

From Literature

OMG the roads are full of cars.

From Literature