and still means the same.
most of the time when it is used the commenter is trying to be random.
The origin of this word/catchphrase came from an episode of an anime called: Panty & Stocking with Garterbelt.
Just before a character got blown up he said: "Oh my God!"
but when he was resurrected (the scene of him blowing up in reverse) he said "God my Oh!" instead of "ho ym dog".
Comment1: Oh my god. (or OMG)
Comment2: God my Oh!
Comment17: What the f#ck, sweet video man.
Comment19: Fuck the what.