Oh my flippin' God

I just heard the phrase, "Oh my flippin' God" on a public forum. The interjection got me curious and I began searching Google for the phrase origin. All the links I found were only instances of usage, so I'd like to ask the question here.

It looks as though this interjection was introduced into the language by an unarticulate ejaculation. Why else then should someone use the word "flipping" as an expletive? O my flippin' Lord, this is so wierd.

That's not a very good cuss. Flipping is used in place of the other F-word. But the F-word isn't used with God or lord, so it doesn't fit.