A misspelling of "omg" that was backronymed to mean "Oh, hi God", as if a child discovered stealing a cookie. Usually said when one is in the process of doing something the lord would look down upon, such as watching certain late night films.
by GrillyG November 06, 2009
by Sanjaythebamf January 19, 2010
by Jon M. S. September 21, 2004