Ahhh, I dug through my box of college stuff and found my Cassel's German/English dictionary.
Götze = Idol Götzen is plural.
Deiner = is a conjugated form of "your" or "yours" but Gotendeiner is a compound noun and the 'deiner' portion would not (or should not be) used to show possessive. Although, Japanese to German may be a little more convoluted and it may be the best they could come up with.
I know nuttzing about the game.
For all I know, Götzendeiner could be the equivalent to "all your base are..." in Germany.