But It Came From …
According to the Oxford English Dictionary, the first person to use “OMG” was a 75-year-old British admiral, which is about as far as a carbon-based life form can get from a teenage valley girl in a mall texting her friends about Justin Bieber’s butt. His name was John Arbuthnot “Jacky” Fisher, 1st Baron Fisher of Kilverstone, and he coined the term while writing his memoirs … in 1917. Almost 100 years ago. (via 7 Ridiculous Origins of Everyday Words | Cracked.com)