Top Definition
Just the expression OMG ( oh my god) but at a higher level.

When something isn t just a OMG thing... u can use megaomg.
1*Dude... there is a black president in USA (supposing that the guy don t know)

2*megaomg!!!!
by Chatel!ke April 21, 2009
5 Words related to MEGAOMG

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