The Jargon File (version 4.4.7, 29 Dec 2003):

ogg
 /og/, v.

    [CMU]

    1. In the multi-player space combat game Netrek, to execute kamikaze
    attacks against enemy ships which are carrying armies or occupying
    strategic positions. Named during a game in which one of the players
    repeatedly used the tactic while playing Orion ship G, showing up in the
    player list as ?Og?. This trick has been roundly denounced by those who
    would return to the good old days when the tactic of dogfighting was
    dominant, but as Sun Tzu wrote, ?What is of supreme importance in war is to
    attack the enemy's strategy, not his tactics.? However, the traditional
    answer to the newbie question ?What does ogg mean?? is just ?Pick up some
    armies and I'll show you.?

    2. In other games, to forcefully attack an opponent with the expectation
    that the resources expended will be renewed faster than the opponent will
    be able to regain his previous advantage. Taken more seriously as a tactic
    since it has gained a simple name.

    3. To do anything forcefully, possibly without consideration of the drain
    on future resources. ?I guess I'd better go ogg the problem set that's due
    tomorrow.? ?Whoops! I looked down at the map for a sec and almost ogged
    that oncoming car.?


The Free On-line Dictionary of Computing (30 December 2018):

ogg

    /og/ (CMU) 1. In the multi-player space combat game
   Netrek, to execute kamikaze attacks against enemy ships
   which are carrying armies or occupying strategic positions.
   Named during a game in which one of the players repeatedly
   used the tactic while playing Orion ship G, showing up in the
   player list as "Og".  This trick has been roundly denounced by
   those who would return to the good old days when the tactic of
   dogfighting was dominant, but as Sun Tzu wrote, "What is of
   supreme importance in war is to attack the enemy's strategy."
   However, the traditional answer to the newbie question "What
   does ogg mean?" is just "Pick up some armies and I'll show
   you."

   2. In other games, to forcefully attack an opponent with the
   expectation that the resources expended will be renewed faster
   than the opponent will be able to regain his previous
   advantage.  Taken more seriously as a tactic since it has
   gained a simple name.

   3. To do anything forcefully, possibly without consideration
   of the drain on future resources.  "I guess I'd better go ogg
   the problem set that's due tomorrow."  "Whoops!  I looked down
   at the map for a sec and almost ogged that oncoming car."

   (1995-01-31)