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1.
An explosion in the Assmosphere. In otherwords, a big ass fart.
"My god, he just ripped a Galaxy Explosion"
by D. Ferrel September 24, 2003
 
2.
One of Lukareas newest move
its so powerfull to make a whole galaxy explode. iIf the move connect with the opponent, you are sent to a 3rd dimension that its almost impossible to climb out of. a mere deadly move
That does it! GALAXIAN EXPLOSION!!!

i am gonna finish you off with my Galaxian Explosion!
by i am zam March 11, 2003