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1. OMLG
Oh My Lady Gaga
OMLG, that's amazing! as apposed to "OMG, that's amazing"
2. OMLG
Stands for 'Oh my Lady GaGa'. Seen on C4 program Ugly Betty and encouraged by radio 1 DJ Scott Mills, this phrase is another (more glamorous way) of saying 'Omg' meaning 'Oh my god'.
OMLG - Look at that mans moobs!
3. OMLG
Oh My Lack of God

or

My Lack of God

Used by atheists and agnostics alike to dictate a semantic parallel of the more common omg; the latter being unfit to their beliefs.

Origins: The phrase is first referenced in an episode of Monty Python and the Flying Circus.
Desk Clerk: Trostky! My lack of God (OMLG)! It's Trotsky! -Monty Python and the Flying Circus
4. omlg
Oh My Lack of God.

Very useful for Atheists, to whom omg is very unfitting.

I, an Atheist, invented this for use of all Atheists.

Spread it far and wide!
It's actually pretty straightforward. Instead of using omg, use omlg.
5. omlg
Acronym for '' Oh My Like Gosh" , mainly used for sarcasm or mucking around.
"omlg! did you just see that?!"