1917 J. A. F. Fisher Let. 9 Sept. in (1919) v. 78 I hear that a new order of Knighthood is on the tapis— O.M.G. (Oh! My God!)—Shower it on the Admiralty!!

1994 Re: AW: Ryan & Lorna..NOT in rec.arts.tv.soaps (Usenet newsgroup) 23 Sept. OMG ! what did I say?

1997 C. Parker 183 OMG Oh my God!

2006 Mar. 134/4 Is this ridiculous to anyone else? Are we dreaming? OMG , What is going on?

2009 R. V. Kozinets x. 183 All of it blogged and microblogged and promoted with lots of omgs and lols.