If you plan it, they may come.
But sorry to burst your bubble on the coining... the word "Apostapalooza" has been used before:
2001 riz wrote: You guys know that I am down. Let the Apostapalooza begin!
http://www.jehovahs-witness.net/jw/friends/4617/1/To-ALL-EX-JEHOAGIES-SCHMITNESSES-esp-N-W-AREA
2002 eyegirl wrote: p.s. scooter and i were toying with the idea of apostapalooza--what do you all think??!? :)
http://www.jehovahs-witness.net/jw/experiences/29307/1/Anyone-from-Minnesota
2005 mkr32208 wrote: I just want a small bumper sticker for my jeep that says "Apostapalooza..."
http://www.jehovahs-witness.net/jw/friends/103628/2/Beginning-to-not-care-again
2010 geodude wrote: If-you-have-an-Apostafest-why-not-have-an-APOSTAPALOOZA
I thought the 2007 Toronto 'Fest was Apostapalooza, apparently I am wrong about that.
Throw out a date and location. Who knows? You might get something started.
-Aude.