ogm

A term commonly used on an online game called "Secrets of Mirage X"... the creator Scorpio once said "ogm" on the forums and now everyone has been saying it since.
It is a misspelling of "omg"; meaning oh my god.

AWP: Ogm no on knows how to spell.
Splasm: I know ogmz...

by Splasm August 08, 2005