Pronounced: Ohh mah gawd con-fesh-shun.
Usually in a mocking way.
Used when someone confesses an embarassing story or detail, that is actually rather stupid and not that embarassing.
The lowest form of irony.
Also, oh my god concession, oh my god infection, oh my god perception, oh my god recession, oh my god depression, oh my god erection, and etc.
Commonly used in tween magazine Dolly.
"And then I totally realised my crush was watching!!"
"... Oh my god confession..." *who cares bitch*