Stands for Halo 3 Disc Read Error. When you boot up your Halo 3 and all you get is a "Disc Read Error" message causing you to slam your head into a wall. After waiting for such a hyped up game you should be able to play with no problems.
I just bought a new 360 and Halo 3 but sadly upon starting up a matchmaking game on snowbound, i am a victim of H3 DRE. Thanks Bungie for this awesome game! Now im going to throw my 360 out the window and hang myself.
International organisation of good-natured drunkards known as hashers who enjoy cross country running or hashing drink lots of beer, inflict cruel punishments on each other when bored, call each other by bizarre hash names, sing hash hymns and are basically soundpeople.
The H3 have some of the best collections of obscene songs on the web.