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2 definitions by Define yourself

 
1.
The final game in the Halo series, developed by Bungie.

It is scheduled to be released on September 25th, 2007.
Halo 3 is going to be the best fucking game ever!!
by Define yourself May 27, 2007
 
2.
The date that the highly anticipated Halo 3 is scheduled to release.

As of this definition, the Halo 3 Multiplayer beta is currently released and able to play for anyone who has taken place in the beta contest or have purchased the game Crackdown.
Halo fanatic: Bob, I can't wait until September 25th, 2007, Halo 3 is finally coming out!

Bob: Yeah, me too!
by Define yourself May 27, 2007