I’ll check with my cow-orkers for an answer.
I burning your racinchikki.
After all that research, I expect you might feel just a bit disappointed? 
“Og Smash” dates back to at least the mid-90’s on Usenet, a couple of years before even the AOL version of the Dope.
Haj
All your Og are belong to us!
No, it all started with that speedo wearing, ping pong and accordian playing single “I Kiss You!!!” Turkish guy, Og Cagri. Everybody loves him.
There was an unforgettable thread a while back about a WWE-style smackdown match between the primitive caveman god, Og and the eldritch trans-dimensional horror, Cthulhu.
Unfortunately, “Og”, being a two-letter word, is hard to search for…
Og doesn’t stand a chance against The Evil One.
And lo! after a search through eldritch relams unknown to any but the hamsters of the search engine, I bring you…
Cthulhu Vs. Og: the Battle of the Gods!
I give up – “OG SMASH”???
The tenets of Og?
I think I need to get some tormented, troubled sleep now.
Would an orthodox Ogite spell His name “O-” or “-g”?
It seems I have inadvertently awoken a sleeping giant, for which I apologise 
I like the idea of having a word for a generic deity linked to no religion in particular and guess “Og” is as good a name as any so as a non-believer in any existing religion I am happy to have an alternative to God to use in exclamations. For Og’s sake why didn’t someone think of this sooner!
The Kraken? Og? Was he asleep, apart from those 20 minutes back in 1960?