Starrcade I think it just another cheesy name that's been placed by WCW. Kinda like 'Souled Out', 'Beach Blast', etc. It has no real meaning behind it.
But "Beach Blast" or whatever, would obviously be some Summery Beach theme, while "Souled OUt" was a play off of "Sold Out" and the "Selling your Soul" to the nWo. Starrcade just.. doesn't make any sense at all.