Source : Free On-Line Dictionary of Computing

IMHO
     
         (From SF fandom via {Usenet}) In My Humble Opinion.
        Also seen in variant forms such as IMO, IMNSHO (In My
        Not-So-Humble Opinion) and IMAO (In My Arrogant Opinion).
     
        [{Jargon File}]
     
        (1998-09-24)