Top Definition
When someone with Castenitis and a JapStamos team up for a game of Warhammer 40,000: Dawn of War, they engage in the age-old tradition of the "Jap-Jew-Mega-Battle". This is where they play online games of Warhammer 40,000 together, usually against a noob. A loss is very rare, and usually the opponent is crushed.
"Hey, you want to join me online for a Jap-Jew-Mega-Battle?"
by Davo A. February 06, 2007

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